In this question, we have to find the distance covered by a vehicle in 1 s moving with a particular speed.

We know that distance ‘x’ covered by a vehicle moving with a particular speed ‘v’

x = v × t ------------------- (1)

Where x = distance covered

v = speed of the vehicle

t = time taken to cover distance ‘x’

Here v = 18 km/h = 5 m/s

To convert km/h to m/s multiply the value of km/h with

t = 1 s

Substituting the values of ‘v’ &‘t’ in equation (1)

x = v × t

x = 5 ms^-1 × 1 s

x = 5 m

The distance covered by the vehicle in 1s = 5m