Physics
Answer
Newton’s law of gravitation states that, the force of attraction acting between two bodies is —
(i) directly proportional to the product of their masses and
(ii) inversely proportional to the square of the distance between them. This force acts along the line joining the two particles.
Related Questions
Assertion (A) : Weight is the force with which the earth attracts a body.
Reason (R) : It is a measure of the quantity of matter contained in the body, at rest.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false
Assertion (A) : A swimmer pushes the water backward to move forward in a swimming pool.
Reason (R) : Water exerts a greater but opposite force on the swimmer, helping him to move forward.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false
State whether the gravitational force between two masses is attractive or repulsive ?
Write an expression for the gravitational force of attraction between two bodies of masses m1 and m2 separated by a distance r.