What is Truck: Definition and 305 Discussions

A truck or lorry is a motor vehicle designed to transport cargo, carry specialized payloads, or perform other utilitarian work. Trucks vary greatly in size, power, and configuration, but the vast majority feature body-on-frame construction, with a cab that is independent of the payload portion of the vehicle. Smaller varieties may be mechanically similar to some automobiles. Commercial trucks can be very large and powerful and may be configured to be mounted with specialized equipment, such as in the case of refuse trucks, fire trucks, concrete mixers, and suction excavators. In American English, a commercial vehicle without a trailer or other articulation is formally a "straight truck" while one designed specifically to pull a trailer is not a truck but a "tractor".The majority of trucks currently in use are still powered by diesel engines, although small- to medium-size trucks with gasoline engines exist in the US, Canada, and Mexico. The market-share of electrically-powered trucks is growing rapidly, expected to reach 7% globally by 2027, and electric motive force already predominates among both the largest and smallest trucks. In the European Union, vehicles with a gross combination mass of up to 3.5 t (3.4 long tons; 3.9 short tons) are known as light commercial vehicles, and those over as large goods vehicles.

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  1. B

    What type of flywheel would be best for improving performance in a truck?

    Hello, I have a question on a flywheel. I have been racking my brain over this for months, and still no good answer.I i have a 4 wheel drive truck, that is 4,500.lb. 100hp at 4,000.rpm, and 200lb. ft at 2,000.rpm, at the flywheel. The vehical drives at 50mph at 2,500.rpm. with a 1 to 1 final...
  2. W

    What will happen to the crate of eggs when a truck makes a sharp left turn?

    A truck driver is carrying a crate of eggs to a local gorcery store. When the driver gets off the highway, he makes a sharp left turn. According to Newton's Laes, what will happen to the crate of eggs? a. The crate will slide to the right in the truck. b. The crate will slide to the left in...
  3. L

    Fridge on Truck Homework: Find Normal Force, Forces Exerted & Rope Tension

    Homework Statement A refrigerator is approximately a uniform parallelepiped h = 8 ft tall, w = 3 ft wide, and d = 2 ft deep. It sits upright on a truck with its 3 ft dimension in the direction of travel. Assume that the refrigerator cannot slide on the truck and that its mass is 130 kg. For...
  4. B

    Collision of Car & Truck: Calculating Velocity & Direction

    A car weighing m kg, and a truck, weighing 4m kg, collide at an angle of alpha. Initially they are traveling at the same velocity. After the collision they move off together at an angle of theta. a) show that tan(theta) = (4 sin alpha) / (4 cos alpha + 1) b) Show that if their initial...
  5. F

    A large truck is to transport 30,000 Kg of orange pre-cooled to 4oC

    A large truck is to transport 30,000 Kg of orange pre-cooled to 4oC under average temperature of 27oC. The structure of the walls of the truck is such that the rate of heat transportation is UA=80W per oC temperature difference between the ambient and the oranges. From past experience, ambient...
  6. L

    What Coefficient of Friction Keeps a Crate from Sliding on a Decelerating Truck?

    Homework Statement A truck is traveling down a 15º incline. The truck then begind to break (decelerate) at a rate of 4 m/s. A crate sits on top of the truck bed..Determine the coefficient of friction to keep the crate from sliding on the truck bed. If the truck were to accelerate up a 15º...
  7. J

    Speed of a truck wthout brakes down a hill

    1. Hi, I'm trying to find the speed that a truck rolling down a hill which brakes have failed. The hill has a drop of 85 meters vertically and a horizontal of 1510 meters. The hill is like a right angle where the bottom right is the 90 degrees. The bottom left is 3.2 degrees and the top right...
  8. G

    Stability of truck mounted lifting systems calculation

    Hi everyone, I was looking for a std to calculate stability of truck mounted crane. Recently I found an australian std "australian code of practice for crane installation on truck" (I think it is a part of 1418 au std), and I found it simple and practical. But, when I tried to solve the example...
  9. BobG

    Was the Tow Truck Driver's Tragic Death Preventable?

    Earlier this week, a tow truck driver was preparing to tow away a vehicle in an apartment complex. In the middle of hooking the cable from the SUV to the tow truck in order to drag it up onto the flatbed, the driver ran out, jumped into her car, and drove off. She snapped the cable from the...
  10. P

    Calculating Internal Energy Absorbed in Truck Cab After Collision

    How to calculate Energy absobed by the components of a Truck Cab after crash test?? Hi, I have a question regarding the calculation of internal energy of components after collision. In conducting the frontal impact test as per the ECE R29 regulation, a swing bob has to hit the front of...
  11. G

    US proposes cellphone ban for truck drivers

    I think that cell phones shouldn't be banned for truck and bus drivers. I don't think we should discriminate against someone just because they drive a truck. However, I believe that the trucking companies should be allowed to decide whether or not they want to permit their truckers to use cell...
  12. T

    How far will the truck travel before it stops?

    Homework Statement hiya, I have a question here ; A truck driver traveling at 100km/h puts his truck into neutral just as the trurck starts up an incline of 15° above horizontal. a) calculate how far the truck will travel before it comes to a stop? Homework Equations We haven't...
  13. M

    Winterize truck with steel plate?

    Hi Kind of a random question, I know, I just think this is a great place to get a answer. Anyway, I have a single cab pickup truck. So of course I have a very light back-end, to compensate for this in the winter for more traction I have been putting in a solid steel plate my Dad bought...
  14. C

    Homework problem dealing with frictional forces when a box is inside of a truck

    Homework Statement A 30.0 kg packing case is initially at rest on the floor of a 1500 kg pickup truck. The coefficient of static friction between the case and the truck floor is 0.30 and the coefficient of kinetic friction is 0.20. Before each acceleration given below, the truck is traveling...
  15. C

    Static Friction of a Braking Truck

    Homework Statement A crate sits unrestrained on the back of a flatbed truck traveling along a straight road at a speed of 80km/hr. The driver applies a constant braking force and comes to a stop in a distance of 22m. What is the minimum coefficient of static friction between the crate and the...
  16. C

    Center of Mass of Truck with weights added

    distance between front and rear wheels of the truck is 3.50m. total upward force on front wheels is 12300N and rear wheels is 9180N. (I have already calculated that the center of mass is 1.28 m behind the front wheels). Now a 4850N object is added to the tailgate 4.23m from the front wheels...
  17. M

    What Causes a Rod to Slip on a Moving Truck?

    we have a truck in our game we have a rod against the wall of that truck, and we know the acceleration of truck when the rod start slipping... we just want to know what is acceleration and of rod when it start slipping.
  18. I

    Car is traveling at a speed, what speed will a truck have the same momentum?

    A car with a mass of 964.0 kg is traveling at a speed of 63.3 km/hr. At what speed (in km/hr) will a 3530.7 kg truck have the same amount of momentum as the car?
  19. r-soy

    A truck covers 80 m in 17 s while smoothly slowing down to a final speed

    A truck covers 80 m in 17 s while smoothly slowing down to a final speed of 5.6 m/s a ) find its original speed b) Final its acceleration I want check my answer : a ) Dx = 80 m t = 17 s v = 5.6 m/s v0= ?? by appling the rule Dx = 1/2(v+v0)t 80 = 1/2(5.6 + v0) 17 v0 =...
  20. K

    Calculating Friction Force of a 4000 kg Truck on a 15° Slope

    Homework Statement A 4000 kg truck is parked on a 15 degree slope. what is its friction force? please show work, i'd like to understand how to do this problem *** my college professor doesn't really teach in class, well let me take that back. he teaches some things but leaves us...
  21. C

    Mass hanging from the roof of a moving truck. Newtons laws.

    Homework Statement [PLAIN]http://img28.imageshack.us/img28/7341/capturehzm.jpg Homework Equations Fg=mg Ft=ma Ftx=Ftsin(22) Fty=Ftcos(22) Fg-Fty=? I realize this is probably required but I don't know where. The Attempt at a Solution I believe the acceleration the question is...
  22. M

    Coefficient of Static Friction between truck and block

    Homework Statement An un-tethered block sits on a flatbed truck as it accelerates up an incline that makes an angle of 15° with respect to the horizontal. If the truck speeds up at a rate less than 2.10 m/s2, the block remains on the truck. If the truck speeds up at a rate equal to or greater...
  23. S

    A child trying to catch an ice-cream truck (kinematics question)

    Homework Statement A child is running at her maximum speed of 4.0 m/s to catch an ice-cream truck, which is stopped at the side of the road. When the child is 20 m from the truck, the ice-cream truck starts to accelerate away at a rate of 1.0 m/s^2. Does the child catch the truck...
  24. C

    Motion problem for constant acceleration of truck

    Homework Statement A truck travels at a constant speed of 28.0 m/s in the fast lane of a two-lane highway. It approaches a stationary car stopped a the side of the road. When the truck is still 125 m behind the car, the car pulls out into the slow lane with an acceleration of 2.6 m/s2. How...
  25. W

    Charging APC batteries off truck circuit?

    Hi Gents, new guy here. I'm an ME by degree ( 25 years ago.) but it's been a while since I've done any real number crunching. ( Got moved to management.) Especially in EE areas. So here is my question. I have a couple of small 12V lead acid batteries in the 2.5-7Ahr range that I use to power...
  26. L

    A non-linear program, truck stops and camps

    I could use some help starting my homework. The problem set up is as follows: #1: Facility Location Suppose we want to locate an airstrip somewhere in the desert where airplanes can land to drop off food aid, which will be trucked to various refugee camps. The camps are located and...
  27. G

    Powering a Half Ton 4x4 Truck: How Many HP Does an Electric Motor Need?

    How many Hp would an electric motor need to reliably power a half ton 4x4 truck? Thanks
  28. D

    Truck Incline FBD: Check My Answers and Identify External Forces

    Homework Statement I want to know if I drew this free body diagram correctly. Information about the problem: 1:The truck has a load which is the black park as it goes up the incline. It doesn't have a load when it goes down the hill. 2:The truck is rear wheel driven. 3:The truck has...
  29. M

    Calculating Force Needed to Lift Load with Pickup Truck Crane

    http://www.harborfreight.com/1-2-half-ton-capacity-pickup-truck-crane-1647.html I bought this truck crane for my father. How could i calculate the force needed on the handle to lift a given load? I could measure it but I am interested in how the math is done. For simplicity i'll assume the...
  30. M

    Mechanical advantage pickup truck crane

    I bought this truck crane for my dad. I want to calculate the mechanical advantage of it. http://www.harborfreight.com/1-2-half-ton-capacity-pickup-truck-crane-1647.html I know how to calculate the mechanical advantage of a hydraulic jack and of a lever but I am not sure about where...
  31. R

    Calculate Impact Force Of a Truck Hitting a Deer

    Trying to calculate the impact of an 8000 lb. truck moving at a rate of 55mph, hitting a 200 lb deer that is standing still in the middle of the road. Does assuming it is a localized hit make any difference? What i mean is, if the deer was hit from the back, and his 200lb wieght was focused in...
  32. V

    Friction - truck on a slippery road

    Homework Statement A truck is traveling at 40 m/s on a slippery road. The driver slams on the brakes and the truck starts to skid. If the coefficient of kinetic friction between the tires and the road is 0.30, how far will the truck skid before stopping? Homework Equations ma=-ug V^2...
  33. O

    Center of mass: What would make the truck tipover?

    Homework Statement http://screencast.com/t/ZTk3NDUxNjU I need help with understanding number 18. Homework Equations Center of mase formula: m1x1+m2x2/(all masses) The Attempt at a Solution How do you tell if adding the weight will make the truck tipover. I calculated that...
  34. M

    How Much Work Does a Tow Truck Perform When Pulling a Car?

    Homework Statement A tow truck drags a stalled car along a road. The chain makes an angle of 30 deg with the road and the tension in the chain is 1500 N. How much work is done by the truck in pulling the car 1 km? Homework Equations The Attempt at a Solution What I'm confused...
  35. P

    Coefficient of friction (between road and wheels of accelerating truck)

    Homework Statement What is the coefficient of friction between the road and the wheels of a 1400kg truck accelerating at 2 m/s/s if the force applied by the engine to the wheels is 4000N. Homework Equations Fn = m * g Ff = mu * Fn The Attempt at a Solution I do not know how to...
  36. P

    Acceleration of a Truck Problem

    Homework Statement A truck on a straight road starts from rest, accelerating at 2.00m/s^2 until it reaches a speed of 20.0m/s. Then the truck travels for 20.s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.00s. a) How long is the truck...
  37. Y

    Truck vs Tree (first week physics woes)

    1. The driver of a truck slams on the brakes when he sees a tree blocking the road. The truck slows down uniformly with an acceleration of -5.60 m/s2 for 4.20s making skid marks 62.4m long that end at the tree. With what speed does the truck strike the tree? Homework Equations I'm guessing that...
  38. L

    Calculating Force Needed to Move Crate of Books on Truck

    A crate of books is to be put on a truck with the help of some planks sloping up at 33◦. The mass of the crate is 100 kg, and the coefficient of sliding friction between it and the planks is 0.4. You and your friends push horizontally with a force ~F . The acceleration of gravity is 9.81...
  39. Ƒ

    Truck Average Velocity Calculation - 400m North, 300m East in 80s and 70s

    Homework Statement A truck travel 400 meters north in 80 seconds, and then it traveled 300 meters east in 70 seconds. The magnitude of the average velocity of the truck is most nearly: a) 1.2 m/s b) 3.3 m/s c) 4.6 m/s d) 6.6 m/s e) 9.3 m/s Homework Equations \bar{v} = Δx/Δt The...
  40. D

    Pushing a rail truck where the mass is not constant

    In one of my undergrad books on physics is the example of a rail truck of mass M on a frictionless railroad moving at a constant speed v, which is being filled with sand at a rate of x kg/s If force F is applied to the truck, then the truck does not accelerate because F=m \frac{dv}{dt} +...
  41. A

    Actual truck speed (geometric optics)

    http://img691.imageshack.us/img691/5753/98144291.jpg this is the solution found in the solution manual, http://img693.imageshack.us/img693/6536/67143924.jpg I didn't understand the part of taking the derivative part, that is how does this http://img22.imageshack.us/img22/8125/87467649.jpg...
  42. S

    Solving a Physics 30 Question: Car & Truck Collision

    hi i am doing physics 30 by modules after doing it by class. and i am having a hard time working this question out. A car with a mass of 1400kg is westbound at 50km/h. it collides at an intersection with a northbound truck having a mass of 2000kg and traveling at 40km/h. what is the inital...
  43. R

    Doppler effect fire truck siren

    Homework Statement Hearing the siren of an approaching fire truck, you pull over to the side of the road and stop. As the truck approaches, you hear a tone of 460 Hz; as the truck recedes, you hear a tone of 420 Hz. How much time will it take for the truck to get from your position to the fire...
  44. W

    Work done on crate by the truck

    A truck carrying a 65.4kg crate accelerates from rest to 61.3km/hr on a flat horizontal surface in 15.2s The acceleration was not constant. HOw much work was done on the crate by the truck? W=Kf-Ki W=(1/2*65.4kg*220680000^2)-0 W=1.59e18 Is this correct?
  45. S

    Another Equilibrium Dilemma: Air resistance holding a truck in equillibrium

    **Edit: Solved the problem, need help with some of the concepts though.. Homework Statement The diagram shows a cart on a ramp which is fixed to the floor in the back of a truck. Friction in the wheels is negligible. At what rate must the truck accelerate forward for the cart to remain...
  46. Y

    The truck, the box and the slide

    problem is attached as image... i asked on yahoo answers, received a reply but is wrong... it is very challenging (in my opinion).. I spent over an hour without reaching even a wrong option..
  47. Q

    Solving the Truck Stopping Distance Problem

    Homework Statement a truck of mass 2000 kg traveling 20 m/s to the right carries a load of mass 500 kg positioned 3 meters behind the driver. The load is kept on the truck by friction, and the coefficient of friction between the load and the bed of the truck is 0.5. What is the shortest...
  48. Z

    Truck deceleration to prevent box from sliding

    Homework Statement The coefficent of static friction between the floor of a truck and a box resting on it is 0.38. The truck is traveling at 69.7 km/hr. What is the least distance in which the truck can stop and ensure that the box does not slide? Homework Equations The Attempt at...
  49. K

    Trouble Solving: Police Car & Stolen Truck

    1. Homework Statement : A police car is in pursuit of a stolen pickup truck. At one instant, the car has a speed of 34m/s and is 164m behind the truck. At the same time, the truck has a speed of 32m/s. If neither vehicle accelerates, how long will it take the police to catch up to the truck...
  50. E

    Calculating Separation of Car and Truck

    Homework Statement A car and a truck are heading directly toward one another on a straight and narrow street, but they avoid a head-on collision by simultaneously applying their brakes at t=0 . The resulting velocity-versus-time graphs are shown in the figure . What is the separation...
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