Suppose the gravitational attraction varies inversely as the distance from the earth. The orbital velocity of a satellite in such a case varies as nth power of distance where `n` is equal to

Options

A. `-1`
B. zero
C. `+1`
D. `+2`

Answer

B

Explanation

`F=(k)/(r)" "(k="constant")`
`:. (mv^(2))/(r)=(k)/(r) or v prop r^(0)`