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Suppose gravity of earth suddenly becomes zero, then in which direction will the moon begin to move if no other celestial body affects it?

1. Radial
2. Tangential
3. cant say
4. None

Correct answer: Tangential

Solution

The Moon’s motion around Earth is maintained by Earth’s gravity providing the centripetal force. If that force suddenly becomes zero, the Moon continues in the direction of its instantaneous velocity, which is tangent to its orbit.

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