Question

derive a relation between kinetic energy and momentum of an object having Mass and moving with velocity

Answer 1

that a easy way 
plz mark as brainiest answer plz
$v$=$p$/m
and K=1/2m$v^{2}$
so K=1/2m($p$/m)
K=$p^{2}$/2m

Answer 2

See the picture
It explains the relationshilp to each other.