How does the force of attraction between the two bodies depend upon their masses and distance between them ? A student thought that two bricks tied together would fall faster than a single one under the action of gravity. Do you agree with his hypothesis or not ? Comment.

How does the distance of separation between two bodies affect the magnitude of the non-contact force between them ?

If the masses of two bodies are quadrupled and the distance between their centres is doubled, then how many times the force of gravitation between them will be changed ?

If the masses of two bodies are quadrupled and the distance between their centers is doubled, then how many times the force of gravitation between them will be changed ?

If the distance between two bodies is dobled and mass of any one of the bodies is quadrupled then the percentage increase in their force of attraction will be.

If the distance between the two bodies is increased to two times, then by how many times the mass of one of the bodies to be changed to maintain the same gravitational force ?

If the distance between the two spherical bodies is increased to four times, then by how many times, the mass of one of the bodies to be changed to maintain the same gravitational force ?

Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them and the blocks are pushed together with the spring between them. A cord initially holding the blocks together is burned, after that, the block of mass 3M moves to the right with a speed of 2.00 m//s . (a) What is the velocity of the block of mass M . (b) Find the system's original elastic potential energy, taking M = 0.350 kg . (c) Is the original energy in the spring or in the cord? Explain your answer. (d) Is momentum of the system conserved in the bursting apart process? How can it be with large forces acting? How can it be with no motion beforehand and plenty of motion afterward?

Two celestial bodies are separated by some distance. If the mass of any one of the bodies is doubled while the mass of other is halved then how far should they be taken so that the gravitational force between them becomes one-fourth ?

Two celestial bodies are separated by some distance. If the mass of any one of the bodies is doubled while the mass of other is halved then how far should they be taken so that the gravitational force between them becomes one-fourth ?