A ball vibrates back and forth from the free end of an ideal spring having a force constant (spring constant)of 20 N/m.If the amplitude of this motion is 0.30 m,what is the kinetic energy of the ball when it is 0.30 m from its equilibrium position?
A)0.00 J
B)0.22 J
C)0.45 J
D)0.90 J
E)1.4 J

Question

Quizplus · Accepted Answer

At 0.30 m from its equilibrium position, the ball is at its maximum displacement (amplitude), where all the energy is potential and the kinetic energy is zero.

A Ball Vibrates Back and Forth from the Free End