Physics

Problem

0.20\,\text{kg}

block attached to a friction-less horizontal spring oscillates with amplitude

10\,\text{cm}

and angular frequency

5\,\text{s}^{-1}

. The block is released from rest at the extreme right position at

t=0

. How much time (approximately) will elapse before it first reaches a displacement of

5\,\text{cm}

from the equilibrium position? a)

0.10\,\text{s}

0.31\,\text{s}

0.21\,\text{s}

0.42\,\text{s}