Solve the following problem given below:
Problem: A playground merry-go-round is a dick of radius 4.0 m and mass 5.0x102 kg, initially stationary. If a child of mass 48 kg jumps tangentially and lands on the edge of the merry-go-round with a speed of 5.0 m/s,
Part A- what is the resulting angular velocity?
I known the correct answer but I need to know how to get that. Thanks in advance!