Simple Harmonic Motion Problem 8.7.2

Description

An aluminum bar (Young's modulus of  70 x 109 N/m2) is stretched by a  force, as shown in the animation (position is in centimeters and time is in seconds). Assume the bar has a square cross section. 

Question

What is the force required to elongate the aluminum? Start

Answer

1.5 x 104 N.

Reference

See Giancoli-PA: 11-8, Giancoli-SE: 14-2.

Credits

Physlet problem authored by Mario Belloni.

2000 by Prentice-Hall, Inc. A Pearson Company