A block attached to a horizontal spring is pulled back a

Last updated: 7/29/2022

A block attached to a horizontal spring is pulled back a certain distance from equilibrium, then released from rest at t = 0 s. If the frequency of the block is 0.80 Hz, what is the earliest time after the block is released that its kinetic energy is exac one-half of its potential energy? Express your answer with the appropriate units.