A motor car is moving with a velocity of `108 km//h` and it takes `4 second` to stop after the brakes are applied. Calculate the force exerted by the brakes on the motorcar if its mass along with the passenger is `1000 kg`.

Explanation

To solve the problem, we will follow these steps:

### Step 1: Convert the velocity from km/h to m/s
The initial velocity of the motor car is given as \( 108 \, \text{km/h} \). We need to convert this to meters per second (m/s).

\[ \text{Velocity in m/s} = \frac{\text{Velocity in km/h} \times 1000}{3600} \]
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