The mass of the railway carriage is 8000 kg which is moving with the speed of `54 km h^(-1)` collides with the another stationary carriage of same mass. Determine the loss in kinetic energy in this process.

Explanation

To solve the problem of determining the loss in kinetic energy when a moving railway carriage collides with a stationary carriage of the same mass, we can follow these steps:

### Step 1: Convert the speed from km/h to m/s
The speed of the moving carriage is given as 54 km/h. To convert this speed into meters per second (m/s), we use the conversion factor \( \frac{5}{18} \).

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