Find the distance covered by a body in 20 seconds if it increases its speed to 60 metres per second from rest in 20 seconds.

Answers (1)

As u=0 and t= 20 sec and v=60 m/s

we get 

a=\frac{v-u}{t}=\frac{60}{20}=3 \ m/s^2

Now using 

s=ut+\frac{1}{2}at^2=0+\frac{1}{2}*3*400=600 \ m

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