Explain why an apple should fall down to meet the earth instaed of earth moving upwards to meet the apple, when the gravitational pull is the same in both cases.

Is the sun's gravitational pull on the earth the same in all seasons of the year ? Explain.

The earth attracts an apple. Does the apple also attract with earth ? If it does, why does the earth not move towards the apple ?

A stone is allowed to fall from the top of the tower 100 m high and at the same time another stone is projected vertically upwards from the ground with a velocity of 25ms^ -1 . Calculate when and where the two stones will meet ?

Molecules in air in the atmoshpere are attracted by gravitational force of the earth. Explain why all of them do not fall into the earth just like an apple falling from a tree.