A hailstone of mass strikes the ground with a speed of

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

Problem

A hailstone of mass

20\,\text{g}

strikes the ground with a speed of

15\,\text{m/s}

. Calculate its kinetic energy (approximately). (a)

3.0\,\text{J}

(b)

22.5\,\text{J}

(c)

2.25\,\text{J}

(d)

4.5\,\text{J}