A 50-G Ball Moving at 10 M/s in the +X

question 75

Multiple Choice

A 50-g ball moving at 10 m/s in the +x direction suddenly collides head-on with a stationary ball of mass 100 g.If the collision is perfectly elastic,what is the velocity of each ball immediately after the collision?

• A)-3.3 m/s,+6.7 m/s
• B)+3.3 m/s,-6.7 m/s
• C)-6.7 m/s,+3.3 m/s
• D)+6.7 m/s,-3.3 m/s