What is the total momentum of the bullet and the gun before firing ?

Academic Physics NCERT Class 9

Before firing, the total momentum of the bullet and the gun is zero as there is no motion and the velocity of the gun and bullet is zero.

Tutorialspoint

Updated on: 10-Oct-2022

34 Views

What is the total momentum of a bullet and a gun before firing?
The momentum of a bullet of mass 20 g fired from a gun is 10 kg m/s. The kinetic energy of this bullet in kJ will be:252.50.255
Explain why, the flash of a gun shot reaches us before the sound of the gun shot.
Does bullet of gun possess kinetic energy?
A Bullet Of mass $0.10\ kg$ is Fired From A Gun. The Bullet Takes $0.003\ Seconds$ To Travel Through The Barrel And Leaves The Velocity Of $300\ m/s$. Calculate The Acceleration Of The Bullet.
A gun of mass 3 kg fires a bullet of mass 30 g. The bullet takes 0.003 s to move through the barrel of the gun and acquires a velocity of 100 m/s. Calculate :(i) the velocity with which the gun recoils. (ii) the force exerted on gunman due to recoil of the gun
The momentum of a bullet of mass $20\ g$ fired from a gun is $10\ kg.m/s$. The kinetic energy of this bullet in $kJ$ will be:(a) 5 (b) 1.5 (c) 2.5(d) 25
A bullet of mass $50\ g$ is fired from a gun of mass $6\ kg$ with a velocity of $400\ m/s$. Calculate the recoil velocity of the gun.
Why does a gunman get a jerk on firing a bullet ?
What is the SI unit of momentum ?
If the total mass of the reactants before the chemical reaction is 110 grams, what would be the total mass of the products after the chemical reaction?
(a) Explain the terms ‘crests’ and ‘troughs’ of a wave? What type of waves consist of crests and troughs?(b) The flash of a gun is seen by a man 3 seconds before the sound is heard. Calculate the distance of the gun from the man (Speed of sound in air is 332 m/s).
The velocity of a body of mass $10\ kg$ increases from $4\ m/s$ to $8\ m/s$ when a force acts on it for $2\ s$.(a) What is the momentum before the force acts?(b) What is the momentum after the force acts? (c) What is the gain in momentum per second?(d) What is the value of the force?
(a) Explain the terms 'crests' and 'troughs of a wave? What type of waves consist of crests and troughs? (b) The flash of a gun is seen by man 3 seconds before the sound is heard. Calculate the distance of the gun from the man (Speed of sound in air is 332 m/s).
A man wearing a bullet-proof vest stands still on roller skates. The total mass is 80 kg. A bullet of mass 20 grams is fired at 400 m/s. It is stopped by the vest and falls to the ground. What is then the velocity of the man?

Kickstart Your Career

Get certified by completing the course

Get Started

Advertisements