Home
Class 12
PHYSICS
(A) : When bullet is fired from a gun, t...

(A) : When bullet is fired from a gun, the gunner should exert force on gun in the direction of motion of bullet.
(R) : The gun recoils when bullet is fired.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the

C

(A) is true but ( R) is false

D

Both (A) and (R ) are false

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the given statements, we need to evaluate both the assertion (A) and the reason (R) based on the principles of physics, particularly Newton's laws of motion. ### Step-by-Step Solution: 1. **Understanding the Assertion (A)**: - The assertion states that when a bullet is fired from a gun, the gunner should exert force on the gun in the direction of the bullet's motion. - This implies that the gunner needs to apply a force to counteract the effects of the bullet being fired. 2. **Understanding the Reason (R)**: - The reason states that the gun recoils when the bullet is fired. - According to Newton's third law of motion, for every action, there is an equal and opposite reaction. When the bullet is fired forward, the gun experiences a backward force, which is known as recoil. 3. **Analyzing the Recoil**: - When the bullet is fired, it moves forward, and due to the conservation of momentum, the gun must move backward. This backward movement is the recoil of the gun. - The force exerted by the bullet on the gun is equal in magnitude and opposite in direction to the force exerted by the gun on the bullet. 4. **Conclusion on the Assertion**: - To stabilize the gun and counteract the recoil, the gunner must exert a force in the forward direction (the same direction as the bullet). This helps in maintaining control over the gun and ensuring accuracy. 5. **Final Evaluation**: - Both the assertion (A) and the reason (R) are correct. The assertion correctly states that the gunner should exert a force in the direction of the bullet's motion, and the reason correctly explains that the gun recoils when the bullet is fired. ### Final Answer: Both (A) and (R) are correct, and (R) is the correct explanation for (A). ---
Promotional Banner

Similar Questions

Explore conceptually related problems

When a bullet is fired from a gun

When a bullet is fired from a gun

When a shot is fired from a gun, the gun gets recoiled. Explain.

A bullet is fired from the gun. The gun recoils, the kinetic energy of the recoil shall be-

Assertion : When a bullet is fired from a gun the bullet pierces a wooden block and stops. The temperature of the bullet and the surrounding layers of wood changes. Reason : Temperature is related to the energy of motion of the bullet as a whole.

Assertion: In case of bullet fired from gun, the ration of kinetic energy of gun and bullet is equal to ration of mass of bullet and gun. Reason: Kinetic energy prop(1)/(mass) , if momentum is constant.

Assertion : A bullet is fired from a rifle. If the rifle recoils freely, the kinetic energy of rifle is more than that of the bullet. Reason : In the case of rifle bullet system the law of conservation of momentum violates.

A bullet of mass 40 g is fired from a gun of mass 10 kg. If velocity of bullet is 400 m/s. then the recoil velocity of the gun wil be

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

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?