Question

Question 24
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.

Answer 1

Force between two bodies $=F=\frac{GMm}{d^2}$

Force is directly proportional to the product of the masses of the two bodies and inversely proportional to the square of the distance between them.

No, both the bricks will fall with the same velocity because the acceleration of the bricks in free fall does not depend on the mass of the two bricks, it depends on the mass of the earth which is the same in both cases.

Hence, his hypothesis is wrong.