A ball dropped from a bridge strikes the water in 5 s. Calculate
the speed with which it strikes

Explanation

To solve the problem of a ball dropped from a bridge that strikes the water in 5 seconds, we can use the equations of motion under uniform acceleration due to gravity.

### Step-by-Step Solution:

1. **Identify the Given Information:**
- Time of fall (t) = 5 seconds
- Initial velocity (u) = 0 m/s (since the ball is dropped)
- Acceleration due to gravity (g) = 9.81 m/s² (approximately)
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