A Ball Vibrates Back and Forth from the Free End

question 53

Multiple Choice

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