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प्रश्न
State Newton's law of gravitation. What is the difference between:
g and G?
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उत्तर
Newton law of gravitation is that every object in the universe attracts every other object with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
'g' is the acceleration due to earth's gravity and 'G' is universal gravitational constant.
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संबंधित प्रश्न
Write the answer of the question with reference to laws of gravitation.
State the universal law of gravitation.
How does the force of gravitation between two objects change when the distance between them is reduced to half?
What happens to the force between two objects, if the masses of both objects are doubled?
If you compare the gravitational force on the Earth due to the Sun to that due to the Moon, you would find that the Sun’s pull is greater than the Moon’s pull. (You can check this yourself using the data available in the succeeding exercises). However, the tidal effect of the Moon’s pull is greater than the tidal effect of Sun. Why?
State Kepler’s law which is represented by the relation r3 ∝ T2.
The mass of moon is about 0.012 times that of earth and its diameter is about 0.25 times that of earth. The value of G on the moon will be:
How will the force of gravitation between two objects change if the distance between them is:
Made four times
A ball is thrown up with a speed of 4.9 ms-1.
Calculate the maximum height it would gain before it begins to fall.
What does a force do in the following case?
You catch a kicked ball.
Shown are several curves (Figure). Explain with reason, which ones amongst them can be possible trajectories traced by a projectile (neglect air friction).
