A 0.5 puck is initially moving at 1 m/s to the right when it is struck from behind by a 0.4 kg puck that was moving 5 m/s to the right. Assuming a 1 dimensional perfectly elastic collision, what are the final velocities of the two pucks?

Two objects, both with a mass of 1.91 kg are sliding across a horizontal, frictionless surface toward each other. If mass 1 has an initial velocity of 3.5 m/s i  and mass 2 has an initial velocity of -2.46 m/s i, what is the change in total kinetic energy if they undergo a perfectly inelastic collision? Assume that total momentum is conserved.

Two boxes make a perfectly elastic collision on a horizontal frictionless surface as shown in the figure. Box with mass m= 8.0 kg and speed of 4.50 m/s collides with box M. After the collision, box m recoils with a speed of 0.75 m/s. The boxes are in contact for 0.30 s. The magnitude of the average force on the 8.0 kg box, while the two blocks are in contact, is

Same situation as before. This time it s a block of mass 1.24 kg sliding with a constant velocity of 4.13 m/s to the north, which collides 100% elastically with a second, stationary block, of mass 3.08 kg, head-on, and rebounds back to the south, eventually colliding 100% elastically with a wall and rebounding northward. It then overtakes the second block, which is still moving north as a result of the first collision. What will be the speeds of the 1.24-kg and 3.08-kg blocks, respectively, after their SECOND collision with one another?   a. 2.63 m/s and 2.02 m/s   b. 3.33 m/s and 0.95 m/s   c. 2.47 m/s and 1.49 m/s   d. 1.84 m/s and 1.22 m/s