## College Physics (4th Edition)

The correct answer is: (e) $0~s, 4~s, 8~s$
For an object in SHM, the kinetic energy is zero when the speed is zero. The speed $v_x$ is zero at $t = 0~s, 4~s, 8~s$ The correct answer is: (e) $0~s, 4~s, 8~s$