Two identical billiard balls striks a rigid wall with the same speed but at different angles , and get reflected without any change in speed , as shown in Fig . What is (i) the direction of the force on the wall due to each ball ? (ii) the ratio of the magnitudes of impulses imparted to the balls by the wall ?

Explanation

To solve the problem regarding the two identical billiard balls striking a rigid wall, we will break the solution into two parts as per the question.

### Part (i): Direction of the Force on the Wall

1. **Understanding the Situation**:
- Both billiard balls strike the wall with the same speed but at different angles.
- The first ball strikes the wall perpendicularly (90 degrees), and the second ball strikes at an angle of 30 degrees to the wall.

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