You move 1 m/s to the right in 1 second. If your mass is 66 kg and your friend's mass is 91 kg, at what speed did he push you?

Question

You are standing still and your friend pushes you from the left,

Answer 1

Try this approach, similar to the Hulk's running problem.

 

v₁ = (v₂)SQRT(m₂/m₁)

     = (1)SQRT(66/91)

     = 0.85 m/s

 

I removed the momentum solution posted earlier. It's likely that you have not learned that concept yet