Work and Energy 8.3: Additional Problem 4


Description

A 0.50-kg cart on an air track receives a push as shown in the animation (position in meters and time in seconds). The spring is initially unstretched with a spring constant of k=100N/m.

Question

Determine the magnitude of the force required to hold the block in place and the work done by the external agent.   Start

Answer

75 N / 28 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