Question

b) What happens to the force between two objects, if

(i) the mass of one object is double?

(ii) the distance between the objects is double and tripled?​

Answer 1

Answer:1) if the mass of an object is double that the gravity between them is also double.

2)if the distance between the object is double and triple then thus, the gravitational force between them become one ninth.

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Answer 2

Required Answer

(i) If the mass of one object is doubled then the force between the two objects is doubled. Because force is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centres.

(ii) If the distance between the objects is doubled then the force between the objects becomes 1/4 th as the force between the objects is inversely proportional to the square of distance between them. And if the distance between the objects is tripled then the force between the object becomes 1/9th.

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Know More

Newton's law of gravitation : states that any particle in the universe attracts the other particle with a force varying directly to the product of the masses and inversely to the square of distances between them.

Newton's first law of motion : A body will continue in its states of rest or uniform motion unless an external force acts on it.

Newton's second law of motion : The rate of change of momentum is directly proportional to the impressed force and acts in the same direction in which the force acts.

Newton's third law of motion : For every action there is an equal and opposite reaction.