A ping pong ball and a rubber ball have the same size and shape, but the rubber

Question

A ping pong ball and a rubber ball have the same size and shape, but the rubber ball has a larger mass. They are both dropped from a height of 10 meters. If air resistance is neglected, then:

The rubber ball hits the ground first

The ping pong ball hits the ground first

Both balls hit the ground at the same time

There's no way to tell which ball hits the ground first

The rubber ball hits the ground first

The ping pong ball hits the ground first

Both balls hit the ground at the same time

There's no way to tell which ball hits the ground first

Explanation / Answer

They both hit the ground at the same time if air resistance neglected

for example

If you were to throw an elephant and an ant off a building simaltaneously, they would both hit the ground at the same.
But normally this is not possible because of air. Air causes bodies which are light and/or have a large surface area to slow down.

if there is an air resistance

They are not the same weight. The heavier ball will accumulate more momentum compared to the lighter ball. So what?
If they are dropped in air, the air will resist their passage. It takes energy to move the air out of the way. The rubber ball has more energy available to move the air out of the way. The pingpong ball will be slowed more by the air.

In this case, the rubber ball will reach the ground first.
The same would occur if they were dropped in water

so ans is Both balls hit the ground at the same time

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