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Question
If bullet of mass 'm1' is fired from a gun of mass 'm2' with a speed of 'V1', then the recoil velocity of gun is ______.
Options
-`("m"_1"V"_1)/"m"_2`
-`("m"_2)/("m"_1"V"_1)`
-`("m"_1)/("m"_2"V"_1)`
-`("m"_2"V"_1)/"m"_1`
MCQ
Fill in the Blanks
Solution
If bullet of mass 'm1' is fired from a gun of mass 'm2' with a speed of 'V1', then the recoil velocity of gun is `underline(-("m"_1"V"_1)/"m"_2)`.
Explanation:
m1V1 - m2V2 = 0
`therefore "V"_2 = (- "m"_1"V"_1)/"m"_2`
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Principle of Conservation of Linear Momentum
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