Question

16. A projectile weighing 200 kg is fired from
a gun with a velocity of 500 m/s. If the
velocity of recoil of the gun is 12.5 m/s,
calculate the mass of the gun.
(Ans. 8000 kg)​

Answer 1

Answer:

From Conservation of Momentum,

    Total momentum before firing=Total momentum after firing

                       0=mv+MV

                   -mv=MV

                      M=-mv/V

                         =-200×500/-12.5

                         =100000/12.5

                         =8000 kg

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Answer 2

Answer:

the answer comes 800

Explanation:

because the 12.5 is c