Basketball will fly to the sky.

Fly straight up

He landed because there was no gravity.

Humans dare not jump.

Jump up and you'll never get back to the ground.

Unless someone helps you.

There are more serious ones.

The air will be thinner and thinner.

Until there is insufficient oxygen.

Humans became extinct because they couldn't breathe.

No inertia

This problem is big.

Because inertia is that objects will be stupid when they move.

The previous explanation of inertia was not exact.

No inertia

In fact, many laws of physics are wrong now.

As in a vacuum.

Under the condition of inertia

You exert a force on an object.

He will always keep on exercising.

In the absence of inertia

You must keep putting pressure on him to keep him moving.

Everything we do in this way will be more laborious.

The car needs more power to move forward.

Every step he takes seems to be just the beginning.

It takes a lot of strength.

Instead of overcoming air resistance now.

Besides, if you take a bus, you are afraid that people can't stand standing in the car.

He can't stand still.

His feet will fall down because of friction.

You dare not jump on the ground.

Jump up and you will land far from the takeoff point.

Because the earth is turning again.

You won't.

You will hit a cliff or a wall and die.

By then, jumping will become an extreme sport.

If inertia and gravity disappear at the same time

Then you won't shoot into the sky.

Of course, you can't shoot.

It's like pushing a box.

Throw it away.

Basketball moves one space.

Stop in mid-air

Because there is no gravity.

He won't fall behind.

Because there is no inertia.

He won't fly very far.

You will live in a world full of suspended objects. . . . . . . .