Question

proved in s=ut+1/2at^2

Answer 1

Average velocity final velocity +initial velocity /2
=v +u/2
V=s/t
S=v×t
S=v+u/2×t
Put the value of v from equ. 1st
S=u+at+u/2×t
=(2u+at)×t/2
=2ut/2+at^2/2
S=ut+1/2at^2

Answer 2

Average velocity final velocity +initial velocity /2

=v +u/2

V=s/t

S=v×t

S=v+u/2×t

Put the value of v from equ. 1st

S=u+at+u/2×t

=(2u+at)×t/2

=2ut/2+at^2/2

S=ut+1/2at^2