If two person A and B take 2 s and 4 s, respectively to lift an object to the same height h, then the ratio of their powers is

If two persons A and B take 2 seconds and 4 seconds respectively to lift an object to the same height h, then the ratio of their potential energies at highest point is

If two persons A and B take 2 seconds and 4 seconds respectively to lift an object to the same height h, then the ratio of their potential energies at highest point is

The area of two holes A and B are 2a and a , respectively, The holes are at height (H//3) and (2H//3) from the surface of water. Find the correct option(s):

The area of two holes A and B are 2a and a , respectively, The holes are at height (H//3) and (2H//3) from the surface of water. Find the correct option(s):

The time period of two pendulums of same length oscillating on different planets A and B is 2 s and 3 s, respectively . The ratio of acceleration due to gravity on the two planets is "_______"

two bodies A and B of equal masses are kept at heights of h and 2h respectively. What will be the ratio of their potential energies ?

One coolie takes 1 minute to raise a suitcase through a height of 2m but the second coolie takes 30 s to raise the same suitcase to the same height. The powers of two coolies are in the ratio':

A solid sphere and a solid cylinder of same mass are rolled down on two inclined planes of heights h_(1) and h_(2) respectively. If at the bottom of the plane the two objects have same linear velocities, then the ratio of h_(1):h_(2) is