A child runs and jumps tangentially onto an initially stationary ...

[daltonest1984]

A child runs and jumps tangentially onto an initially stationary playground merry-go-round. As a result, the merry-go-round begins to turn. Explain in terms of the child-merry-go-round system.
 
  What will be an ideal response?

Question 2

In a particle accelerator, a proton reaches an acceleration of 9.0  1013 m/s2. The mass of a proton is 1.7  10-27 kg. What is the force on the proton?
 
  What will be an ideal response?

[itsakadoozi]

Answer to Question 1

The child has an initial angular momentum about the center of the merry-go-round. The total angular momentum of the system is conserved, so the merry-go-round must rotate when the child is on it.

Answer to Question 2

1.5  10-13 N

[daltonest1984]

Great answer, keep it coming

[Chelseyj.hasty]

Thanks for the timely response, appreciate it