An block attached to a horizontal spring of force constant has a speed of when its…

PHYSICS · Multi-part · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

0.40\,\text{kg}

block attached to a horizontal spring of force constant

120\,\text{N\,m}^{-1}

has a speed of

0.30\,\text{m\,s}^{-1}

when its displacement from equilibrium is

0.020\,\text{m}

. Find: (i) Amplitude (ii) Total mechanical energy