Question

For a body starting from rest the displacement in 20 second when it enquires 8 meter per second in 4 sec is​

Answer 1

Initial speed of the body u=0
Displacement in 2 seconds S=ut+
2
1
​
at
2

⟹ S=0+
2
1
​
a(2)
2
=2a
⟹ a=
2
S
​