Question

A 10.0-g marble slides to the left with a velocity of magnitude 0.400 m/s on the frictionless, horizontal surface of an icy New York sidewalk and has a head-on, elastic collision with a larger 30.0-g marble sliding to the right with a velocity of magnitude 0.200 m/s. Let +x be to the right. (Since the collision is head-on, all the motion is along a line.) (Figure 1) Figure1 of 1 Part A Find the magnitude of the velocity of 30.0-g marble after the collision. Part B Find the magnitude of the velocity of 10.0-g marble after the collision. Part C Find the direction of the velocity of each marble after the collision. The 10.0 g marble is moving to the left and the 30.0 g marble is moving to the right. The 30.0 g marble is moving to the left and the 10.0 g marble is moving to the right. Both marbles are moving to the right. Both marbles are moving to the left. Part D Calculate the change in momentum (that is, the momentum after the collision minus the momentum before the collision) for 30.0-g marble. Part E Calculate the change in momentum for 10.0-g marble. Part G Calculate the change in kinetic energy (that is, the kinetic energy after the collision minus the kinetic energy before the collision) for 30.0-g marble. Part H Calculate the change in kinetic energy for 10.0-g marble.

Answer 1