See previous post
http://www.jiskha.com/display.cgi?id=1401230418
A 69.5kg football player is gliding across very smooth ice at 2.15m/s . He throws a 0.470kg football straight forward.
A) What is the player's speed afterward if the ball is thrown at 16.0m/s relative to the ground?
B) What is the player's speed afterward if the ball is thrown at 16.0m/s relative to the player?
1 answer