Question

A body starting from rest accelerates uniformly ad attains a velocity of 20m/s in 30 secs find its acceleration and distance it covers in that time.

Answer 1

u=0

v=20 m/s

t=30 sec

a=(v-u)/t

=(20-0)/30

=2/3 m/s^2

s=ut+ 1/2 a(t^2)

=0*30 + 1/2*(2/3)(30^2)

=300 m