A block is attached to a vertical spring of spring constant

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

2\,\text{kg}

block is attached to a vertical spring of spring constant

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

. The block is pulled down so that the spring is compressed by

0.10\,\text{m}

and is then held

0.50\,\text{m}

above the ground. Taking

g=10\,\text{m\,s}^{-2}

, find the total potential energy of the system relative to the ground. (a)

10\,\text{J}

(b)

12\,\text{J}

(c)

11\,\text{J}

(d)

9\,\text{J}