write the feature of gravitational force
Answers
Following are the main features of gravitational force:
(i) It is always an attractive force.
(ii) It is independent of the medium between the
particles.
(iii) It holds good over a wide range of distances (i.e.,from interplanetary distances to interatomic distances).
(iv) It is an action-reaction pair i.e., the force of attraction exerted by body A on body B is equal to the force of attraction exerted by body B on body A. However, the acceleration of the two bodies will not be equal.
(v) The gravitational force between two particles
is independent of presence or absence of other particles.
(vi) The total gravitational force on one particle due to number of particles is the resultant of forces of attraction exerted on the given particle due to individual particles, i.e.,
It proves that the principle of superposition is valid.
(vii) It expresses, the force between point masses.
(viii)It is a conservative force, i.e., the work done in moving a particle once aro und a closed path under the action of gravitational force is zero
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Answer:
lmportant features of gravitational force:-)
1》The gravitational force between two masses is independent of intervening medium.
2》The mutual gravitational force between two bodies are equal and opposite i.e., the form action and reaction pair. Hence gravitational force over Newton's third law of motion.
3》The law of gravitational strictly holds for point masses.
4》The gravitational force between two point masses is a central force. Its magnitude depends on r and has no angular dependence. Thus the gravitational force possesses spherical symmetry.
5》The gravitational force is a conservative force.