Calculating acceleration of a plane weighing 9800N

In summary, the problem involves calculating the acceleration of a plane with a weight of 9800N, a forward force of 210000N, and a drag force of 500N. The mass of the plane is determined to be 1000kg. After considering the resultant force and using the equation F=ma, the acceleration is calculated to be 21.38ms^2. The discrepancy between this value and the weight-based calculation is explained by the light weight of the plane, which would require a much larger engine to produce the given forward force.
  • #1
FaraDazed
347
2

Homework Statement



Calculate the acceleration of a plane weighing 9800N when the forward force is 210000N, the drag force due to air resistance is 500N

Homework Equations



F=ma

The Attempt at a Solution



the mass is 1000kg as 9800/9.8 is 100. The resultant force R must be 210000-500=209500

So is the acceleration 209500/1000 or 209500/9800? 209599/9800=21.38ms^2 so that makes a lot more logical sense than 209.5ms^2

But force=massXaccelration not force=weightXacceleration.

I know its another basic question but please someone help stop my head hurting.
 
Physics news on Phys.org
  • #2
1 tonne for a plane is kind of light so that's probably why you're getting such a quick acceleration. I mean even if you didn t take the air resistance into account, the output of energy by the engine is waaaay to big for 1000kg -s of mass.

I think the engine alone would have to weigh a lot more than that
 

Related to Calculating acceleration of a plane weighing 9800N

1. How is acceleration calculated?

The acceleration of an object is calculated by dividing the net force acting on the object by its mass. The equation for acceleration is a = F/m, where a is acceleration, F is the net force, and m is the mass of the object.

2. What is the mass of the plane?

The mass of the plane is given as 9800N in the question. This is the weight of the plane, which is equivalent to its mass in Newtons (N).

3. How do you determine the net force on the plane?

The net force on the plane can be determined by adding up all the forces acting on the plane, including the weight, thrust, and air resistance. The net force will be the sum of all these forces, and it will be in the same direction as the resulting motion of the plane.

4. Can the acceleration of the plane change?

Yes, the acceleration of the plane can change if there is a change in the net force acting on it. For example, if the plane increases its thrust, the net force will increase, and the acceleration will also increase. Similarly, if air resistance increases, the net force will decrease, and the acceleration will decrease.

5. What is the unit of measurement for acceleration?

The unit of measurement for acceleration is meters per second squared (m/s^2). This means that for every second the object is in motion, its speed will increase by the given amount in meters per second.

Similar threads

How can the required force be calculated for pushing a block up an incline?
    • Introductory Physics Homework Help
Replies
2
Views
6K
Calculating acceleration of plane when given mass, friction force and Vi
    • Introductory Physics Homework Help
Replies
2
Views
1K
Dropping a package with a parachute from a moving plane
    • Introductory Physics Homework Help
Replies
13
Views
2K
B Maximum Force on transom of a boat under acceleration
    • Mechanics
Replies
6
Views
1K
Find the object's acceleration
    • Introductory Physics Homework Help
Replies
11
Views
909
Maximum Velocity for different accelerations
    • Introductory Physics Homework Help
Replies
24
Views
2K
Calculate the work required to move the block
    • Introductory Physics Homework Help
Replies
28
Views
3K
Frictionless Inclined Plane, solve for acceleration
    • Introductory Physics Homework Help
Replies
7
Views
6K
Motion on a rough inclined plane
    • Introductory Physics Homework Help
Replies
5
Views
1K
Problem with friction on weighing machine
    • Introductory Physics Homework Help
Replies
8
Views
2K

Hot Threads

Recent Insights

Back
Top