Question

A car starts from rest and accelerate at 1.5 m/s2.How much is increase in velocity?

Answer 1

Answer:

v-u=a*t

So increase in velocity is v-u i.e. acceleration multiplied by time so

(1.5*4)m/s = 6 m/sec

Explanation:

We can solve this problem by using the formula :

v=u+ at

where -

v is the final velocity acquired

u is the initial velocity

a is the acceleration

t is the time taken by the car

Now, in our problem, the car accelerates at 1.5m/s^2 for 4 seconds. That gives us a final velocity v of u+(4×1.5) which is 0+6 m/s. So our increase in velocity is 6m/s.

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