A 20-Kg Object Sitting at Rest Is Struck Elastically in a Head-On

question 28

Multiple Choice

A 20-kg object sitting at rest is struck elastically in a head-on collision with a 10-kg object initially moving at +3.0 m/s.Find the final velocity of the 20-kg object after the collision.

• A)-1.0 m/s
• B)-2.0 m/s
• C)+1.5 m/s
• D)+2.0 m/s