Work-Energy 8.3: Additional Problem 5

Description

A 12-kg box slides down a 30 frictionless ramp at constant speed as shown in the animation  (position is in meters and time is in seconds). Note that both gravity and the hand do work on the box. 

Question

What is the work done on the box by the external force (hand) and the total work done on the box during the animation? Start

Answer

-60 J / 0 J.

Reference

See Giancoli-PA: 6-5, Giancoli-SE: 8-1.

Credits

Physlet problem authored by Aaron Titus and modified by Mario Belloni.

2000 by Prentice-Hall, Inc. A Pearson Company