A shell of mass 25 kg is fired from a canon of mass 1800 kg . The canon recoils with a
velocity of 2.5m/s. Find the muzzle ve

1 thought on “A shell of mass 25 kg is fired from a canon of mass 1800 kg . The canon recoils with a<br />velocity of 2.5m/s. Find the muzzle ve”

1. Explanation:

   Mass of gun M = 100kg

   mass of shell m = 0.020kg

   Velocity of shell v = 80m/s

   Recoil velocity of Gun V=?

   initial velocities of both gun and shell will be zero

   so, the initial momentum of the system will be zero.

   According to the law of conservation of momentum,

   Initial momentum = Final momentum

   so,

   0=mv-MV

   ∴v=mv/M

   =

   100

   0.020×80

   =0.016 m/s

   ∴recoil velocity of Gun=0.016m/s

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