A red ball with a velocity of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the red ball after the collision?
A)zero
B)-2.0 m/s
C)+3.0 m/s
D)+2.5.0 m/s
E)+5.0 m/s

Question

Quizplus · Accepted Answer

In a head-on elastic collision between two objects of equal mass, they exchange velocities. Thus, the red ball will have the velocity of the yellow ball, which is -2.0 m/s.

A Red Ball with a Velocity of +3