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प्रश्न
State Newton’s Universal law of gravitation.
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उत्तर
Newton’s law of gravitation: States that the gravitational force between two masses is directly proportional to the product of masses and inversely proportional to the square of the distance between the masses.
In the mathematical form, it can be written as,
`vec"F" = -("GM"_1"M"_2)/"r"^2 hat"r"`
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संबंधित प्रश्न
Choose the correct option.
The weight of a particle at the center of the Earth is _______.
Discuss the important features of the law of gravitation.
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Suppose unknowingly you wrote the universal gravitational constant value as G = 6.67 × 1011. instead of the correct value, G = 6.67 × 10−11, what is the acceleration due to gravity g' for this incorrect G? According to this new acceleration due to gravity, what will be your weight W'?
The escape velocity of a body on a planet 'A' is 12 kms–1. The escape velocity of the body on another planet 'B', whose density is four times and radius is half of the planet 'A', is ______.
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Four identical particles of mass M are located at the corners of a square of side 'a'. What should be their speed if each of them revolves under the influence of the other's gravitational field in a circular orbit circumscribing the square?
Who described Earth’s rotation and orbits before Newton?
What causes tides on Earth?
Why do planets follow elliptical orbits?
