# physics

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a mover uses a ramp to pull a 1000 newton cart up to the floor of his truck 0.8 meters high if it takes a force or 200 newtons to pull the cart what is the length of the ramp

• physics -

The answer depends upon the amount of friction. If there is no friction, they should have said so.

In the frictionless case,
(Force) x (ramp length) = (weight) x (height)

To approximate frictionless behavior, the cart should have well lubricated wheels.

• physics -

200*0.8=160

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