How long would it take the dropped rock to reach the center of the planet Express your answer in terms of the mass of the planet M its R and the necessary constants?

The acceleration of gravity is 9.8m/s2 and the radius of the Earth is 6.378 million meters. This means that you would fall through the entire Earth in only 42 minutes!

Which requires more fuel a rocket going from Earth to the moon or a rocket coming from the moon to Earth?

A rocket going from the Earth to the Moon would require more fuel. Since the Earth has more mass than the Moon, the Earth will exert a larger gravitational force on the rocket than the Moon would (things weigh less on the Moon).

What would happen if you dig to the center of the Earth?

The strength of gravity at the center of earth is zero because there are equal amounts of matter in all directions, all exerting an equal gravitational pull. With such thick air, you eventually lose momentum and stop your yo-yo motion about the center of the earth. You end up stuck floating at the center of the earth.

What would happen if you dig to the center of the earth?

Can you dig to the center of the earth?

It’s the thinnest of three main layers, yet humans have never drilled all the way through it. Then, the mantle makes up a whopping 84\% of the planet’s volume. At the inner core, you’d have to drill through solid iron. This would be especially difficult because there’s near-zero gravity at the core.

How much would you weigh at the center of the Earth?

At the centre of earth, there will be mass but there will be no effect of acceleration. Hence, weight is zero.

Why would your weight be less if you were deep beneath Earth’s surface?

Your weight would be less because the gravitational field inside the Earth is less than the gravitational field at the surface. This is because if you are inside the Earth, only part of the Earth’s mass is pulling you downward.