What is Instantaneous velocity: Definition and 114 Discussions
The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion (e.g. 60 km/h to the north). Velocity is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of bodies.
Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called speed, being a coherent derived unit whose quantity is measured in the SI (metric system) as metres per second (m/s or m⋅s−1). For example, "5 metres per second" is a scalar, whereas "5 metres per second east" is a vector. If there is a change in speed, direction or both, then the object has a changing velocity and is said to be undergoing an acceleration.
Hello,
This problem is very simple, but I don't see what I am doing wrong.
"A positive-time graph for a particle moving along the x-axis is shown in Figure P2.7 Determine the instantaneous velocity at t = 2.00 s by measuring the slope of the tangent line shown in the graph."
I...
hi all having a problem with this question:
The position of a rabbit along a straight tunnel as a function of time is plotted: http://img284.imageshack.us/img284/5764/untitled0vz.png
1. What is its instantaneous velocity at t = 10.0s and t=30.0s
2. what is the average velocity:
between t...
Hi,
I was wondering how to solve the instantaneous velocity for this.
I have 3 points which have 5 cm between point 1 and point 2 and 9 cm between point 2 and point 3 (this is easy, i just need to grasp the concept)
The question is "What is the instantaneous velocity for point 2...
Could someone tell me what formula I should use here?
A satellite travels around Earth in uniform circular motion at altitude 35836 km above Earth's surface. The satellite is in geosynchronous orbit (that is, the time for it to complete one orbit is exactly one day). In the figure below , the...
I've constructed a d-t graph and the question is, how do I calculate the instantaneous velocity, vinst, for each slope break? How do I find the slope break? Do I calculate it using v=chginx/chgint formed by the tangent line to the point or using the point alone simular to Vavg. I've drawn...
Hi everyone! My calc teacher gave us a huge packet and I need some help understanding some of them. Any help would be greatly appreciated.
2.) Assuming that one story of a building is 10 feet, with what speed, in miles per hour, does an object dropped from the top of a 40-story building...
Hi,
This is probably an easy question for some of you, but I do not Undrestand it..
x=At^4 + (Bt + C)t^2 + D * sin(Et) where A, B, C, D, and E are constants. and I have to find instantaneous acceleration and velocity.
I know Instantaneous velocity is
v_x = dx/dt
Instantaneous...
This is an equation of a position v time graph:
x=342t^4-127t^3+1.87t^2+2.45t
I need to use this expression to find the instantaneous velocity at t=0.000s
I was given the following graph:
http://www.webassign.net/pse/p2-03.gif
I must find the instantaneous velocity at T=1.4
The formula for instantaneous velocity is delta x/delta t as t approaches zero. However, I'm still not sure how to work this problem. Please help
A web page designer creates an animation in which a dot on a computer screen has a position of r^\rightarrow [4.40cm + (2.20cm/s^2)t^2]\underlinei + (5.00 cm/s)t\underlinej
okay i already have the correct answer, but i would like to know how the author got it. i came close to getting the...
I know nothing about Instantaneous Velocity. Can you give me the very simple form of explanation? Is instantaneous velocity an exact velocity at an exact point?
We need to know the instentaneous velocity formula for a car launched down a hallway. we also need to figure out how to calculate all the friction involved in this. please help.
I'm very confused...
Please help me... It seems so simple..but its just not going into my head...
Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h and the other at 70 mi/h.
(a) Assuming that they start at the same point, how much...