Inside a satellite orbiting very close to the earth’s surface, water does not fall out of a glass when it is inverted. Which of the following is the best explanation for this ?

Moderate

A

The earth does not exert any force on the water
B

The earth’s force of a attraction on the water is exactly balanced by the force created by the satellite’s motion
C

The force of attraction of earth on water is balanced by the centrifugal force acting on water.
D

The gravitational attraction between the glass and the water balances the earth’s attraction on the water.

Solution

The satellite has centripetal acceleration (radially inward , V² / r) , so the satellite is non-inertial frame . Since the water is in the satellite , a radially outward pseudo force (Centrifugal force) is acting on the water in the glass.This pseudo force balances the gravitational force of attraction of water,

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