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A delivery truck from the postal service is traveling with a constant velocity up and interstate entrance ramp with a 8.5 degree slope.a 60-kg box sits on the floor of the truck and as a result of static friction, it does not slide.

1. What is the work done on the box by the force of gravity? _______ J

2. What is the work done on the box by the force of friction? ________ J

3. What is the work done on the box by the normal force? ________ J

4. Through an interval in which the truck travels 365 m up the ramp entrance, what is the net work done on the box? _________J

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Category:- Physics
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