A Hooke's law spring is mounted horizontally over a frictionless surface.The spring is then compressed a distance d and is used to launch a mass m along the frictionless surface.What compression of the spring would result in the mass attaining double the speed received in the above situation?
A) 1.41 d
B) 1.73 d
C) 2.00 d
D) 4.00 d

Question

Quizplus · Accepted Answer

The kinetic energy of the mass is proportional to the square of its speed. Therefore, the compression of the spring must be increased by a factor of 2^2 = 4 to double the speed of the mass.

A Hooke's Law Spring Is Mounted Horizontally Over a Frictionless