I have a basketball in my right hand, a five kilogram medicine ball.

If I hold them both above my head and then let them go simultaneously, which one will hit the ground first?

Six years ago here at the University of Sydney, I did an experiment very similar to this where I handed out heavy object and a light object, and I asked which one would hit the ground.

First.

Tell me which one's gonna hit the ground first.

I'm gonna put my money on the black fella.

What's your heart telling you?

Get a good job on the block.

Yeah.

Okay.

It's on fast and hit the ground.

Best gonna pick that one.

What's your feeling about that one?

How does it compare to the Well, it's a lot heavier, and I just feel like the white is pulling it down.

You know, the more weight it's faster.

It's gonna fall to the ground.

The force is more in that bowl.

This one you could definitely tell the difference.

I mean, I got a gym, like, seven days, and I still feel it.

Well, that one feels like it could almost go up.

Where?

This one splitting up.

His business being killed.

Now I think now you're coming back to me.

I'm thinking impossible.

Now what's making you think basketball?

Because you come back to him.

I'm just saying, like, you know, I missed a start.

You can corrupt me.

I must say I saw in the black.

All right, let's actually do this thing.

So you wanna hook us up as high as you can?

And the key is to be a simultaneous as you can.

All right.

You ready?

You want counted down?

Three, 21 321 Wait.

What do you think happened?

I feel the black one went about.

The black one landed first.

Wait.

We have to go to the O.

Where did you see?

Uh, looked like that?

Pretty much land at the same time.

They hit again.

I thought was very close to place.

The basic in it, it's It's It's not a very high distance.

Sorry.

Haven't really reached their maximum velocity.

The blackboards didn't reach terminal velocity.

Wasn't enough time for before.

I would be, like all the different, very little like, uh, like that one had to like break room.

Yeah, whatever.

More here, the answer is, Although the force of gravity on the black ball is greater, it has a greater mass and therefore greater inertia, so it requires more force to accelerate it.

There's less gravitational force on the basketball, but because its mass is lower, it has less inertia and therefore requires less force to accelerate it at the same rate as the medicine ball.

Let's give it a try.