Question

a body is projected vertically up with velocity u reaches a certain maximum height with what velocity should it be projected vertically up to reach double the height..?​

Answer 1

Answer:

u2−2gh

v=0 for maximum height.

So, h∝u2

So, h1h2=(u12u22) Now u1=u

If h2=2h1⇒u2=2u