Q. 194.3( 6 Votes )

A girl running a race accelerates at 2.5 ms-2 for the first 4 s of the race. How far does she travel in this time?

Answer :

Acceleration = a =2.5 ms-2

Time of Acceleration = t = 4 s

Initial velocity = u = 0 ms-1

Now, from the equations of motion we know that,

s = 20 m

Hence, the girl travels 20 m in this time.

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