A Sandbag in Outer Space Moves at 3 M/s When

question 85

Multiple Choice

A sandbag in outer space moves at 3 m/s when it collides and sticks to a half-as-massive sandbag initially at rest. Compared with the kinetic energy of the moving sandbag before collision, the kinetic energy of the coupled sandbags after collision is

• A)one-third.
• B)two-thirds.
• C)three-quarters.
• D)not enough information

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