Two different masses are droped from same heights. When these just strike the ground, the following is same :

A rock of mass m dropped to the ground from a height h. A second rock with mass 2m is dropped from the same height. When second rock strikes the ground, what is its kinetic energy?

Two objects with same masses have been dropped from same height at same time. Which of the following will remain same in case of these objects

Two objects with same masses have been dropped from same height at same time. Which of the following will remain same in case of these objects

Statement I : If two bodies of different masses one dropped simultaneously from the same height then they touch the ground simultaneously. Statement II : The time of flight of a freely falling body is independent of its mass.

Two balls are dropped to the ground from different heights. One ball is dropped 2 s after the other but they both strike the ground at the same time. If the first ball takes 5 s to reach the ground, then the difference in initial heights is (Take "g = 10 m s"^(-2) )