Question

The radius of a planet is n times the radius of the earth

Answer 1

Answer:

The radius of a planet is n times the radius of the earth

Step-by-step explanation:

Then whats question bro

Answer 2

Complete Question:

The radius of a planet is n times the radius of earth (R). A satellite revolves around it in a circle of radius 4nR with angular velocity Ω. The acceleration due to gravity on planet 's surface is

$A. R*w^2\\B. 16R*w^2\\C. 32nR*w^2\\D. 64nR*w^2$

Answer:

The correct answer is Option D i.e.  $64nR*w^2$

Step-by-step explanation:

Centripetal force acting on the satellite = $m*r*w^2$

Gravitational force acting on the satellite = $G*M*m$

Since these two forces are equal:

$m*r*w^2$ =  $G*M*m$

Hence,

$r*w^2 = G*M$

Gravitational acceleration = $g = \frac{r^3*w^2}{R^2}$

Hence,

g = $\frac{(4nR)^{3}*w^2}{n^2R^2}$

g = $64nR*w^2$

Hence, Option D is the correct answer.

#SPJ2