Starting at Rest,two Students Standing on Massless Carts Pass a 7.0-Kg

question 57

Multiple Choice

Starting at rest,two students standing on massless carts pass a 7.0-kg ball back and forth.The student on the left has a mass of 40 kg and can throw the ball with a relative speed of 9.0 m/s.The student on the right has a mass of 30 kg.If the ball is thrown horizontally from the student on the left to the student on the right,how fast,relative to the student on the left will the student on the right move after catching the pass?

• A)0.9 m/s
• B)1.7 m/s
• C)2.8 m/s
• D)3.0 m/s
• E)3.9 m/s

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Definitions:

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