2.
The weight of an object at the centre of the earth of radius R is:
3.
The value of quantity G in the law of gravitation:
5.
Law of gravitation gives the gravitational force between:
6.
The atmosphere is held to the earth by:
7.
A boy is whirling a stone tied with a string in an horizontal circular path. If the string breaks, the stone:
8.
The force of attraction between two unit point masses separated by a unit distance is called:
10.
Two objects of different masses falling freely near the surface of moon would:
13.
The value of acceleration due to gravity:
14.
Mass of an object is 10 kg. What is its weight on the earth?
18.
A stone is released from the top of a tower of height 19.6m. calculate its final velocity just before touching the ground.
