The discussion revolves around a bouncy ball dropped from a height, focusing on the change in momentum as it rebounds to a lower height. The subject area includes concepts from kinematics and conservation of energy.
Some participants have suggested using kinematic equations to find the velocity of the ball at the moment of impact. There is ongoing exploration of how to set up the equations and what values to use for initial and final conditions.
Participants are considering the implications of conservation of energy and the specific heights involved in the problem, but there is uncertainty about the correct application of the kinematic equations.
IDKPhysics101 said:A bouncy ball of mass 85.3 grams is dropped from a height of 13.17 meters. It rebound to a height of 5.12 meters. What was the change in momentum (in kgm/s) of the bouncy ball?
IDKPhysics101 said:i was thinking one of the kinematic equations but not sure how to find initial and final velocity or what to set each one to to find the other