Question

CLARITY ACHIEVER - IX
A car initially at rest starts moving with an acceleration of 4 ms 2.The time in which it picks up a velocity
of 72 ms-' is
[ 1
A car initially at rests​

Answer 1

Answer:

18 seconds

Explanation:

Using the formula v-u/t

v= final velocity = 72 m/s

u= initial velocity = 0

t= time

V-U/T =acceleration

V-U/a = time

Hence , 72-0/4= time required ( u=0 because the car was at rest )

72/4 = 18

So the car will pick up the velocity of 72 m/s after 18 seconds.

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