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A 20.0-kg crate sits at rest at the bottom of a15.0-m-long ramp that is inclined at above the horizontal. Aconstant horizontal force of 290 N is applied to the crate to push itup the ramp. While the crate is moving, the ramp exerts a constantfrictional force on it that has magnitude 65.0 N. (a) What is thetotal work done on the crate during its motion from the bottom tothe top of the ramp? (b) How much time does it take the crate totravel to the top of the ramp?

A 20.0-kg crate sits at rest at the bottom of a15.0-m-long ramp that is inclined at above the horizontal. Aconstant horizontal force of 290 N is applied to the crate to push itup the ramp. While the crate is moving, the ramp exerts a constantfrictional force on it that has magnitude 65.0 N. (a) What is thetotal work done on the crate during its motion from the bottom tothe top of the ramp? (b) How much time does it take the crate totravel to the top of the ramp?

Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter6: Energy Of A System
Section: Chapter Questions
Problem 3OQ
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A 20.0-kg crate sits at rest at the bottom of a
15.0-m-long ramp that is inclined at above the horizontal. A
constant horizontal force of 290 N is applied to the crate to push it
up the ramp. While the crate is moving, the ramp exerts a constant
frictional force on it that has magnitude 65.0 N. (a) What is the
total work done on the crate during its motion from the bottom to
the top of the ramp? (b) How much time does it take the crate to
travel to the top of the ramp?

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