A ball is moving in a horizontal circle such that its kinetic energy is and it…

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

Problem

0.50\,\text{kg}

ball is moving in a horizontal circle such that its kinetic energy is

45\,\text{J}

and it completes each revolution in

1.5\,\text{s}

. The radius of the circle is closest to (a)

6.4\,\text{m}

(b)

1.6\,\text{m}

(c)

3.2\,\text{m}

(d)

2.3\,\text{m}