anonymous 4 years ago P,Q, and R are three 30kg children on a merry-go-round 1.0m, 2.0m, and 3.0m from its centre. It is rotating four times each minute. Calculate the centripetal force on each child

circumference of each circle is$C=2\pi r$where r is the radius of the circle. velocity is$v=\frac CT$where T is the time it takes (in seconds) to make one revolution. centripital acceleration is$a_c=\frac{v^2}r$and centripital force is$F=ma_c$where m is the mass of the object moving put these pieces together to solve your problem