Question

Pick the correct formula of Newton's universal law of gravitation. All terms have usual meanings.

• A. $F=\frac{GMm}{r^2}$
• B. $F=\frac{GMm}{r}$
• C. $F=\frac{r^2}{GMm}$
• D. $F=\frac{r^3}{GM}$

Answer 1

The correct option is A $F=\frac{GMm}{r^2}$

The equation for Newton's universal law of gravitation is of the form:
$F=\frac{GMm}{d^2}$

Newton's universal law of gravitation states that every particle in the universe attracts each other with a force that is directly proportional to the product of the two masses and inversely proportional to the square of the distance between their centres.