Recent content by sms14

can anyone verify if I am thinking along the right track?

actually...now that i think about it..i think the answer is 0 because if the person and ball are located within the railcart, then ultimately...if the ball was thrown and returns at rest...there was no momentum change so the change in momentum of the railcart must be zero.

well, i assume I'm part of the system...and i guess the final momentum of the ball is 0 since i caught it??..i just am having trouble understanding the problem and the logistics of it

Homework Statement one of my homework problems you are sitting in a railcart which is moving forward. In your hand is a ball...you throw the ball against the wall of the railcart, and it bounces off of the wall and you catch it...the ball has mass m and was thrown with velocity v...which...