Multiple choice question XXXVI — task. Science CBSE, Class 9.

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A shell of mass

$0.020\ kg$ is fired by a gun of mass

$100\ kg$ . If the muzzle speed of the shell is

$80\ ms^{-1}$ , the recoil speed of the gun

$14\ ms^{-1}$
$0.012\ ms^{-1}$
$0.016\ ms^{-1}$
$100\ ms^{-1}$

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