Consider an ideal collision between a superball and an immovable wall. For Questions 40-42, assume a head-on collision. In the frame of reference of the wall (the lab frame), the initial velocity of the ball is V. In the lab frame, the final speed of the ball is A) V. D) unknown; insufficient information is given for an unambiguous answer.

Question

Consider an ideal collision between a superball and an immovable wall. For Questions 40-42, assume a head-on collision. In the frame of reference of the wall (the lab frame), the initial velocity of the ball is V. In the lab frame, the final speed of the ball is
A) < V.
B) = V.
C) > V.
D) unknown; insufficient information is given for an unambiguous answer.

Quizplus · Accepted Answer

In an ideal collision between a superball and an immovable wall, assuming no energy is lost, the final speed of the ball will be equal to its initial speed, V, but in the opposite direction. This is because the collision is elastic, conserving kinetic energy and momentum, with the wall not moving due to its immovability.

Consider an Ideal Collision Between a Superball and an Immovable