A child (mass=25kg) moves with a speed of 1.50ms-1 when 7.8m from the centre of a merry-go-round. Calculate
a) the cetripetal acceleraton of the child
b) th net horizontal force exerted on the child
centripetal acceleration = v2/r
The Attempt at a Solution
centripetal acceleration = (150)2(squared)/7.8
do i work out the horizontal force exerted on the child by using Fc=mv2/r?
25*(150)2(squared)/7.8 =7.21*10^4 N