While firing, a gun man has to hold the gun tightly against his shoulder. Why?

Explanation

To understand why a gunman has to hold the gun tightly against his shoulder while firing, we can break down the explanation into a few key steps:

### Step-by-Step Solution:

1. **Understanding Recoil**: When a gun is fired, the bullet is propelled forward at a high speed. According to Newton's Third Law of Motion, for every action, there is an equal and opposite reaction. This means that as the bullet moves forward, the gun experiences a backward force, known as recoil.

2. **Effect of Recoil**: The recoil can cause the gun to move backward suddenly and with significant force. If the gunman does not hold the gun tightly, the backward motion of the gun can lead to it slipping away from his shoulder or even causing injury.

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