Question

A body is suspended from a spring balance kept in a satellite . The reading of the balance is $W_1$ when the satellite goes in an orbit of radius R and is $W_2$ when it goes in an orbit of radius 2 R.

• A. $W_1$ = $W_2$
• B. $W_1$ < $W_2$
• C. $W_1$ > $W_2$
• D. $W_1$ $\ne$ $W_2$

Answer 1

Answer: (C)

$W_1$ > $W_2$

$\begin{array}{c}F=\frac{G{M}_m}{r^2}\\ F\propto \frac{1}{r^2}\end{array}$

$ifr\uparrow F\downarrow$

$\because R_2>R_1$

$W_2<W_1$