posted by hunter .
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
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.