Newton's Law of Gravitation

• The force between two body  is

\begin{align*} F &\propto m_1\times m...}

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Variation of Acceleration Due to Gravity

• $$F=ma \: \text {and is}\: a= 1 \text {then}\: F = m $$ and Newtons law of gravitationn&nbs...}
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Gravitational Field

• Then the gravitational force of attraction on the body 

    &n...}

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Escape Velocity and Principle of Launching of Satellite

• . For the earth, g= 9.8 ms^-2 and R = 6.4×10⁶ m, then<...}
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The Motion of Satellite and Black Holes

 The centripetal force on the planet is

Fc = \(\frac{mv^2}{r}\)=\(\frac...}

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