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प्रश्न
What is the importance of the universal law of gravitation?
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उत्तर
The importance of the universal law of gravitation is as follows:
- Through this law, we can find the mass of the earth, sun, etc.
- Using this law, the distance between planets and other bodies is found.
- Due to this force, the moon moves around the earth.
- It is understood from this law that the tides in the sea occur due to the moon and the sun.
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संबंधित प्रश्न
Choose the correct answer from among the given ones:
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The weight of an object is more at the poles than at the equator. Is it beneficial to purchase goods at equator and sell them at the pole? Does it matter whether a spring balance is used or an equal-beam balance is used?
Four particles of equal masses M move along a circle of radius R under the action of their mutual gravitational attraction. Find the speed of each particle.
A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2 , find :
the final velocity of the ball on reaching the ground .
Is the law of gravitation applicable in case of the sun and the moon?
Where will you weigh more: at the centre of the earth or at the surface of the earth?
Where will you weigh more: at the moon's surface or at the earth's surface?
Show that gravity decreases at higher altitudes.
We can shield a charge from electric fields by putting it inside a hollow conductor. Can we shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?
Newton formulated the Universal Law of Gravitation by combining the ideas of which two scientists with his own Laws of Motion?
