Kinematics Reasonings

A small ball and another big ball are dropped from the same height. Which one will reach the ground first?

OR: A heavy and a light ball are projected in the same direction with the same velocity from the same point. Which one will attain more height, cover more range and take more time of flight?

Both the balls will reach the ground at the same time. The time taken by the ball to reach the ground is given by $\sqrt{\frac{2H}{g}.$

Hence, the time of descent depends upon the height of fall and acceleration due to gravity and not on the size or mass of the ball.

[Read: Acceleration due to gravity does not depend upon the mass of an object]

If the balls are projected in some direction, then the same applies for height and horizontal range covered by the body. So, both the balls will attain same height and cover same range.

[Read: Projectile Motion]