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A bullet is fired from a gun. The force ...

A bullet is fired from a gun. The force on the bullet is given by `F=600-2xx10^(5)` t, where F is in newtons and t in seconds. The force on the bullet becomes zero as soon as it leaves the barrel. What is the average impulse imparted to the bullet?

A

1.8 N s

B

18 N s

C

9 N s

D

0.9 N s

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • A bullet fired from a gun experiences a force of 600 -2 xx 10^(5) t in the barrel of the gun. Here t is in second . The force becomes zero as soon as the bullet leaves the barrel of the gun . The time for which the bullet was in the barrel of the gun is

    A
    ` 2 xx 10^(-5)`s
    B
    ` 10^(-5)s`
    C
    ` 3 xx 10^(-5)`
    D
    ` 3 xx 10^(-3)`s

  • A gun applies a force F on a bullet which is given by F=(100-0.5xx10^(5)t)N . The bullet emerges out with speed 400 m/s. then find out the impulsive exerted till force on bullet becomes zero.

    A
    0.2N-s
    B
    0.3N-s
    C
    0.1N-s
    D
    0.4N-s

  • A bullet of mass m is fired from a gun of mass M. The recoiling gun compresses a spring of force constant k by a distance d. Then the velocity of the bullet is

    A
    `kdsqrt(M//m)`
    B
    `(d)/(M)sqrt(km)`
    C
    `(d)/(m)sqrt(kM)`
    D
    `(kM)/(m)sqrt(d)`

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