00:02
So we're going to use conservation of momentum.
00:05
So our initial momentum is equal to final momentum.
00:10
And initially, since the player is holding the ball, they're going to be considered as one system.
00:15
So they are going to have a combined mass, player mass plus the ball mass, times their initial velocity.
00:25
And when he throws the ball, they're going to be separated.
00:28
So their momentums are going to be separate.
00:30
So it's going to be the mass of the player and the velocity of the player.
00:34
Plus the mass of the ball times the velocity of the ball.
00:39
And here we're looking for the velocity of the player.
00:42
So we solve for this v -p term...