A Spring Is Compressed Between Two Blocks,block a of Mass

question 34

Multiple Choice

A spring is compressed between two blocks,block A of mass m,and block B of mass 3m.The 1250 N/m spring is released,sending the blocks in opposite directions.What is the ratio of kinetic energies of block A to block B,K_A/K_B?

• A)1/3
• B)3
• C)1
• D)1/9
• E)More information is needed.

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