Question

a force of 900n was applied to stop a vehicle that was moving with a constant velocity. the vehicle stopped after moving through 6m . how much is the work done force​

Answer 1

Answer:

mechanical advantage = load / effort = 6/900 = 150

Answer 2

Given: Force applied= 900N, Vehicle stopped after 6m

To find: work done by the force

Solution:

We know that work done by the force on a body can be calculated through the product of the value of force applied and the displacement covered.

• Since the force is applied to stop the moving body that means force and the final displacement will be in opposite directions.
• And because of this work done by the force will be negative.

W= F×(-s)

where W is work done, F is the force applied, s is displacement

W= 900×(-6)

W= - 5400 J

Therefore, Work done by the force to stop the vehicle will be W= -5400J.