Home
Class 11
PHYSICS
A soldier fires bullets, each of mass 50...

A soldier fires bullets, each of mass 50 g, from his automatic rifle with a velocity of 1000 m/s. If he can bear a maximum force of 200 N on his shoulder, find the number of bullets which he can fire in a second.

Text Solution

Verified by Experts

The momentum imparted to n bullets per second = (nmv -0 ) = nmv (momentum of a bullet =mv )
`=nmv = (dp)/( dt )`
`=:. , 200 nmv `
`n = (200)/( mv) = (200)/( 50 xx 10^(-3) xx 10^(3))`
`:. , n= 4`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • LAW OF MOTION

    KUMAR PRAKASHAN|Exercise SECTION-C(OBJECTIVE QUESTIONS) (VSQS)|55 Videos

  • LAW OF MOTION

    KUMAR PRAKASHAN|Exercise SECTION-D(NCERT EXEMPLAR SOLUTIONS)|42 Videos

  • LAW OF MOTION

    KUMAR PRAKASHAN|Exercise SECTION -B (ADDITIONAL EXERCISE )|17 Videos

  • GRAVITATION

    KUMAR PRAKASHAN|Exercise QUESTIONS PAPER Section - D|1 Videos

  • MACHANICAL PROPERTIES OF SOLIDS

    KUMAR PRAKASHAN|Exercise QUESTION PAPER|11 Videos

Similar Questions

Explore conceptually related problems

A machine gun fires bullets of 50gm at the speed of 1000m/sec. If an average force of 200N is exerted on the gun, the maximum number of bullets fired per minute is:

A bullet of mass 20 g is horizontally fired with a velocity 150 m s^(-1) from a pistol of mass 2 kg. What is the recoil velocity of the pistol?

Knowledge Check

  • A person fire bullet of 40 g w ith speed of 1200 m /s from his rifle. If rifle can w ithstant maximum recoil force of 144 N. How many bullet he can fire every second ?

    A
    1
    B
    2
    C
    3
    D
    4

  • A bullet of mass 20g fired from a rifle is found to cover the distance of 30m in 4 s. Assuming that the speed of the bullet to be constant, find its kinetic energy.

    A
    `0.5625J`
    B
    `56.25J`
    C
    `30.08J`
    D
    `1.125J`

  • A bullet of mass 20g fired from a rifle is found to cover the distance of 30m in 4 s. Assuming that the speed of the bullet to be constant, find its kinetic energy.

    A
    `0.5625J`
    B
    `56.25J`
    C
    `30.08J`
    D
    `1.125J`

    • Similar Questions

    Explore conceptually related problems

    A thief is running away in a car with velocity of 20 m//s . A police jeep is following him, which is sighted by thief in his rear view mirror, which is a convex mirror of focal length 10 m. He observes that the image of jeep is moving towards him with a velocity of 1 cm//s . if the magnification of mirror for the jeep at that time is 1/10 . Find the actual speed of jeep, Assume the police's jeep is on the axis of the mirror.

    A bullet of mass 10g Is fired from a rifle. The bullet passes through a barrel in 0.003s and moves with the velocity of 300 ms^(-1) Find out the force applied to the bullet by the rifle

    A machine gun fires 10 bullets per second in horizontal direction. Mass of each bullet is 80g and muzzle velocity is 500m//s . If the average horizontal force the shooter must apply to keep the machine gun stationary is Fxx10^(2)N , find numerical velue of F

    A man of mass 30 kg uses a rope of climb which bears only 450 N. What is the maximum acceleration with which he can climb safely

    6 bullets are fired in a second from a machine gun with velocity of 400 ms^(-1) . The mass of machine gun and bullet are 10 kg and 30g respectively. What is the value of force is to be exerted on machine gun to keep it stationary ?

    Home
    Profile