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A shot of mass 20 g is fired from a gun ...

A shot of mass 20 g is fired from a gun of mass 2 kg, moves horizontally with a velocity of 150m /s. What is the backward velocity of the gun?

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The correct Answer is:
-1.5m/s
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Knowledge Check

  • A bullet of mass 10 g is fired from a gun of mass 1 kg. If the recoil velocity is 5 ms^(-1) , the muzzle speed is

    A
    `0.05 ms^(-1)`
    B
    `5 ms^(-1)`
    C
    `50 ms^(-1)`
    D
    `500 ms^(-1)`

  • A bullet of mass 50 g is fired from a gun of mass 2 kg. If the total kinetic energy produced is 2050 J, the kinetic energy of the bullet and the gun respectively are

    A
    200 J, 5 J
    B
    2000 J, 50 J
    C
    5 J, 200 J
    D
    50 J, 2000 J

  • A shell of mass 200 gm is ejected from a gun of mass 4 kg by an explosion that generates 1.05 kJ of energy. The initial velocity of the shell is

    A
    `40 ms^(-1)`
    B
    `120 ms^(-1)`
    C
    `100 ms^(-1)`
    D
    `80 ms^(-1)`

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