A merry-go-round makes revolutions per minute

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

Problem

A merry-go-round makes

20

revolutions per minute. A child sits at a point that is

1.5\,\text{m}

from the centre. Taking

\pi = 3.14

, find the speed of the child. (a)

6.3\,\text{m/s}

(b)

1.6\,\text{m/s}

(c)

3.1\,\text{m/s}

(d)

9.4\,\text{m/s}