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Gravitation

Question

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Write the SI unit of Gravitational constant

Solution

$F = \frac{G M m}{r^{2}}$

Therefore, we can obtain G as,

$G = \frac{F r^{2}}{M m}$

Since SI unit of

Force = Newton

Mass = Kilogram

Distance, r = metre

G = Nm²kg⁻²

OR

G = kg⁻¹ m³s⁻²

Some More Questions From Gravitation Chapter

A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same which one of the following will not be affected?

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