PLEASE HELPPPPPPPP PLEASEEEEEEE
conservation of momentum practice problems.

1.) you are playing pool, you hit the .25 kg cue ball. it moves with a velocity of 2.1 m/s north. it collides with the 8 ball. when they hit, the cue ball completely stops. what is the momentum of the 8 ball now?

2.) you are bowling for a spare. there is just one pin left, and you make a nice play. as the 5.1 kg ball approaches at a velocity of 3.40 m/s north it hits the pin! the 1.5 kg pin is set into motion and the bowling ball continues to roll at a velocity of .87 m/s north. what is the final velocity of the pin?

3.) mr. Pittman was once driving is 1195 KG hyundai elantra. mr. Pittman was stopped at a red light. a 5080 KG Ford F350 with your catcher rear ended Poor Mr. Pittman. The Ford was moving out of velocity of 1.1 m/s east. The Ford came to a complete stop as soon as the collision happened. What was Mr. Pittman velocity right after the collision?