For a ball of fixed mass

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

Problem

For a ball of fixed mass, its speed increases from

2\,\text{m/s}

6\,\text{m/s}

. By what factor does its kinetic energy change? (a)

4\,\text{times}

(b)

3\,\text{times}

(c)

9\,\text{times}

(d)

8\,\text{times}