In 2 hours, the car drove 90 km what distance it covers in 30 seconds if we consider its movement to be uniform.

Given:

L = 90 kilometers – the distance traveled by the car during the time interval t;

t = 2 hours – time interval;

t1 = 30 seconds – time span.

It is required to determine L1 (meter) – what distance the car will travel in the time interval t1.

Since the movement of the car is uniform, we find its speed:

v = L / t = 90/2 = 45 kilometers per hour.

Let’s translate the value of the found speed into the SI system:

v = 45 km / h = 45 * 10/36 = 12.5 meters per second.

Then:

L1 = v * t1 = 12.5 * 30 = 375 meters.

Answer: in 30 seconds the car will travel a distance of 375 meters.