At which of the following places is the gravitational acceleration zero?

Question

Question

This question was previously asked in

RRC Group D Previous Paper 47 (Held On: 10 Dec 2018 Shift 1)

Answer 1

The correct answer is At the centre of the earth.

If you are at the centre of the earth, gravity is zero because all the mass around you is pulling "up" (every direction there is up!).

Additional Information

Zero Gravity or Zero-G can simply be defined as the state or condition of weightlessness.
- It also refers to the state in which the net or an apparent effect of gravity (i.e. the gravitational force) is zero.
- The condition of apparent weightlessness occurs when a body in a gravitational field changes places to neutralize its gravitational force.
- For example, astronauts are seen floating around in outer space because of this phenomenon.
- Astronauts orbiting the Earth in a space station experience zero gravity or weightlessness because their spacecraft continuously undergoes changes in velocity in its orbit in order to prevent it from being pulled into the atmosphere.
- This acceleration, which is often known as a centrifugal force, counterbalances gravity. Hence, they experience Zero Gravity or weightlessness.