1.
A stone is released from the top of a tower of height 19.6m. calculate its final velocity just before touching the ground.
2.
The value of acceleration due to gravity:
3.
The atmosphere is held to the earth by:
5.
Two objects of different masses falling freely near the surface of moon would:
6.
The force of attraction between two unit point masses separated by a unit distance is called:
7.
Mass of an object is 10 kg. What is its weight on the earth?
9.
A boy is whirling a stone tied with a string in an horizontal circular path. If the string breaks, the stone:
12.
Law of gravitation gives the gravitational force between:
16.
The value of quantity G in the law of gravitation:
19.
The weight of an object at the centre of the earth of radius R is:
