Question

when a body is projected vertically up from the ground its pe and ke is in the ratio 2:3 if the same body is projected with double the velocity from the same point then the ratio of its pe and ke is

Answer 1

P. E/k. E= mgh/1/2mv^2
Velocity is doubled
P. E/K. E=mgh/1/2m(2v)^2
=1/4*2/3=1/6