A batsman deflects a ball by an angle of `45^(@)` without changing its initial speed which is equal to `54 km/h`. What is the impulse imparted to the ball ? (Mass of the ball is 0.15 kg)

Explanation

To solve the problem of finding the impulse imparted to the ball when a batsman deflects it at an angle of \(45^\circ\) without changing its initial speed, we can follow these steps:

### Step 1: Convert the speed from km/h to m/s
The initial speed of the ball is given as \(54 \, \text{km/h}\). We need to convert this speed into meters per second (m/s) using the conversion factor \(1 \, \text{km/h} = \frac{5}{18} \, \text{m/s}\).

\[ u = 54 \, \text{km/h} \times \frac{5}{18} = 15 \, \text{m/s} \]
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