Answer
For an object moving vertically under the influence of gravity, maximum height reached by a particle when thrown vertically = $v^{2}$/2g, which is independent of the mass of the body, and time taken is v/g, which is also independent of mass , so these both quantities for 2 objects with same velocity under same gravitational constant.
Work Step by Step
For an object moving vertically under the influence of gravity, maximum height reached by a particle when thrown vertically = $v^{2}$/2g, which is independent of the mass of the body, and time taken is v/g, which is also independent of mass , so these both quantities for 2 objects with same velocity under same gravitational constant.
