1) A 1.0 kg mass is attached to the end of a vertical ideal spring with a force constant of 400 N/m. The mass is set in simple harmonic motion with an amplitude of 10 cm. What is the speed of the 1.0 kg mass at the equilibrium position?

Answer 1

At the equilibrium position, all of the initial stored potential energy changes to KE.

1/2 m v^2=1/2 k (.1)^2

solve for v

Answer 2

Nil