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4A man fires the bullets of mass m each...

4A man fires the bullets of mass m each with the velocity v with the help of machine gun, if he fires n bullets every sec, the reaction force per second on the man will be -

A

`m/vn`

B

m n v

C

`(mv)/n`

D

`(vn)/m`

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Knowledge Check

  • A bullet of mass m is fired with velocity v in a large bulk of mass M. The final velocity v' will be

    A
    `(Mv)/(m+M)`
    B
    `(mv)/(m+M)`
    C
    `((m+M)v)/(m)`
    D
    `(m+M)v`

  • A bullet of mass m is fired with velocity v in a large bulk of mass M. The final velocity v' will be

    A
    `(Mv )/( m + M)`
    B
    `( mv )/( m + M)`
    C
    `(( m + M ) m )/(m) `
    D
    `(m + M )v`

  • A gun fires N bullets per second, each of mass m with velocity v. The force exerted by the bullets on the gun is :

    A
    vNm
    B
    `(mv)/(N)`
    C
    `mvN^(2)`
    D
    `(mv^(2))/(N)`

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