Hey guys, first post !
A few Q's on momentum:
When a rock is falling down, it gains velocity due to Fg. Does this contradict the law of momentum ?
When your increase your kinetic energy by a factor of 2, then your momentum increases/decreases by a factor of ?
A rubber bullet R and a metal bullet M of equal mass strike a target T, R bounces off, M penetrates, which has a greater impluse?
Give an example of a collision in which the momentum a of system is not conserved and explain why in this case it was not.
Thanks in advance!
