Video-enhanced Physics Problems - Collisions |
| 1. Two carts on a horizontal, frictionless track make a head-on collision. The cart of mass 3M and velocity 20 cm/s to the right collides with a cart of mass M which is at rest. The carts stick together upon collision. Their velocity after collision is | |
| 2. A track (zero friction and horizontal) is set up to produce a collision between carts with masses 2M and M. The cart of mass M is initially at rest. The cart of mass 2M is moving at a speed of 30 cm/s to the right. If they collide head-on and make a perfectly elastic collision, what is the speed of the cart of mass M, in cm/s? |