A 2-Kg Rifle Is Horizontally Suspended by a Pair of Strings

question 129

Multiple Choice

A 2-kg rifle is horizontally suspended by a pair of strings so that recoil can be measured.The rifle fires a 0.001-kg bullet at a speed of 200 m/s.The recoil velocity of the rifle is about

• A)0.001 m/s.
• B)0.01 m/s.
• C)0.1 m/s.
• D)1 m/s.
• E)none of the above

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