A ball dropped from a bridge strikes the water in 5 s. Calculate
the height of the bridge

Explanation

To solve the problem of calculating the height of the bridge from which a ball is dropped and strikes the water in 5 seconds, we can use the equations of motion under uniform acceleration. Here’s a step-by-step solution:

### Step 1: Identify the known values
- The time \( t \) it takes for the ball to strike the water is given as \( 5 \) seconds.
- The initial velocity \( u \) of the ball when it is dropped is \( 0 \) m/s (since it is dropped).
- The acceleration \( a \) due to gravity is approximately \( 9.81 \, \text{m/s}^2 \) (we can use \( 10 \, \text{m/s}^2 \) for simplicity).

### Step 2: Use the equation of motion
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