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JEE · NEET Previous Year Question

$The vector form of universal law of gravitation$

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

A $F = G \frac{m _{1} m _{2}}{r} r$
B $F=Gm1m2r4r$
C $F = G \frac{m _{1} m _{2}}{r ^{2}} r$
D $F = G \frac{m _{1} m _{2}}{r ^{3}} r$

Correct answer: D

Solution

(d) Vector form of law of gravitation is given as F = G \frac{m _{1} m _{2}}{r ^{2}} r As, r = \frac{r}{r} ∴ F = G \frac{m _{1} m _{2}}{r ^{3}} r

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