An object is attached to a vertical spring and bobs up and down between points A and B.Where is the object located when its kinetic energy is a minimum?
A)at either A or B
B)midway between A and B
C)one-third of the way between A and B
D)one-fourth of the way between A and B
E)at none of the above points

Question

Quizplus · Accepted Answer

At points A and B, the object comes to a momentary stop, thus its velocity is zero and so is its kinetic energy. Therefore, the minimum kinetic energy is achieved at points A and B.

An Object Is Attached to a Vertical Spring and Bobs