Which layer of the atmosphere would you be in if you were caught in a rain storm?

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

Ineed the answer to question 1 , i’m desperate

Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?