A merry-go-round is turning at the rate of $10.0$ revolutions per minute. A $50.0\;kg$ youth is located $5.00 \;m$ from the axis of rotation . What is the centripetal force acting on him ?

Question

$\begin{array}{1 1} 21.7 \times 10^4 \;N \\ 6.85 \times 10^4 \;N \\ 4.7 \times 10^4 \;N \\5 \times 10^4 \;N \end{array}$