Q13 of 61 Page 318

When a spaceship is two earth radii distant from the centre of the earth, its gravitational acceleration is:

We know that,



Where,


G = Gravitational Constant = Nm2kg-2


M = Mass of Earth


R = Radius of Earth


Now, the spaceship is at a distance R’ = 2R


So, g will be:



ms-2


Hence, option D is correct.

More from this chapter

All 61 →
11

The acceleration due to gravity on the surface of a planet whose mass and radius are both one-third of the Earth (acceleration due to gravity on the earth is g):

 12

In vacuum all freely falling objects:

 14

If a planet existed whose mass and radius were both half that of the earth, the acceleration due to gravity at its surface would be:

 15

A stone is dropped from a cliff. Its speed after it has fallen 100 m is: