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प्रश्न
Suppose the gravity of the earth suddenly becomes zero, then in which direction will the moon begin to move if no other celestial body affects it?
उत्तर
The circular motion of the moon around the earth is due to the centripetal force provided by the gravitational force of the earth. Therefore,
when the gravity of the earth suddenly becomes zero, the moon will begin to move in a straight line in the direction in which it was moving at that instant. That is the moon will move along the tangent to the circular orbit at that instant.
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संबंधित प्रश्न
Is the acceleration due to gravity of earth ‘g’ a constant ? Discuss.
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Explain why the value of g is zero at the centre of the earth.
Why does the velocity of a stone thrown vertically upwards decreases?
The value of G varies from place to place.
The mass of a body on the surface of the earth is 10 kg. The mass of the same body on the surface on the moon is `"g"_"m" = 1/6 "g"_"e"`, where gm, ge acceleration due to gravity on the surface of the moon and the earth respectively.
When the value of acceleration due to gravity 'g' becomes `(g/3)` above the earth's surface at height 'h' then relation between 'h' and 'R' is ______.
R =radius of the earth
At a height R above the earth's surface, the gravitational acceleration is ______.
(R = radius of earth, g = acceleration due to gravity on earth's surface.)
How does the force of attraction between the two bodies depend upon their masses and the distance between them? A student thought that two bricks tied together would fall faster than a single one under the action of gravity. Do you agree with his hypothesis or not? Comment.
A lift of mass 'm' is connected to a rope which is moving upward with maximum acceleration 'a'. For maximum safe stress, the elastic limit of the rope is 'T'. The minimum diameter of the rope is ______.
(g = gravitational acceleration)
