Question

The speed of a car increases by 2 kms after every one hour. If the distance travelling in the first one hour was 35 kms. what was the total distance travelled in 12 hours? *​

Answer 1

Let initial velocity, u = 35 km/h

final velocity= v

acceleration= a= 2km/h²

and distance travelled= s

Using second equation of motion,

$s = ut + \frac{1}{2} a {t}^{2}$

We get,

$s = (35)(12) + \frac{1}{2} \times 2 \times {(12)}^{2} \\ s = 420 + 144 \\ s = 564$

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