A block attached to a spring (force constant ) oscillates with amplitude

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

0.20\,\text{kg}

block attached to a spring (force constant

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

) oscillates with amplitude

5.0\,\text{cm}

. Calculate its kinetic energy when the displacement from the mean position is

3.0\,\text{cm}

. (a)

0.0625\,\text{J}

(b)

0.0225\,\text{J}

(c)

0.040\,\text{J}

(d)

0.080\,\text{J}