Gravitation Tes...

The gravitational force with which the earth attracts the moon :

Which of the following is the CGS unit of relative density?

A ball is projected vertically up with a velocity of $$20 ms^{-1}$$. Its velocity, when the displacement is $$15 m$$, is......... $$ms^{-1}.$$ (Take  $$g = 10 ms^{-2}$$)

On the surface of the earth, the force of gravitational attraction between two masses kept at distance $$d$$ apart is $$6$$$$ N$$. If these two masses are taken to the surface of the moon and kept at the same distance $$d$$, the force between them will be:

A cubical block of wood of side 5 cm is placed on a table. Find the thrust by the block of wood on the table, if density of wood is $$5 g cm^{-3}$$ and g is $$10 m s^{-2}$$

The base of a cylindrical vessel is $$300\ cm^2$$. Water is poured into it up to a depth of $$6\ cm$$. What will be the thrust acting on the base?

Difference between mass and weight.

The value of g on the moon is $$\dfrac {1}{6}th$$ that on earth. A body weighing 60 kg on the earth has weight on the moon equal to?

A rectangular tank of 6 m long, 2 m broad and 2 m deep is full of water, the thrust acting on the bottom of the tank is: