this implies that gravitational force





Derivation of Newton's law of gravitation from Kepler's laws
Let m be the mass of a body in an orbit of radius r, velocity v and angular velocity ' w '. the centripetal force If T is the time period then, According to Kepler's third law, ..
MOTION AND FORCES
Problems involving constant speed and average speed Newton's First Law of Motion Newton's Second Law of Motion Newton's Third Law of Motion Universal Law of Gravitation Effect of gravity on an object at the surface of the Earth Applying a force to an object perpend..
MOTION AND FORCES
Problems involving constant speed and average speed Newton's First Law of Motion Newton's Second Law of Motion Newton's Third Law of Motion Universal Law of Gravitation Effect of gravity on an object at the surface of the Earth Applying a force to an object perpend..
Weak force
This kind of interaction is not well understood as yet. Its range is shorter than the nuclear force. It is important only for certain nuclear processes like radioactive beta decay. Strong : Electromagnetic : Weak : Gravitational 10 2 : 1 : 10 - 1 2 : 10 - 3 ..
Nature of Nuclear Forces
Physicists have categorized all forces occurring in nature under gravitational, electromagnetic, strong nuclear and weak nuclear forces..
Examples of centripetal force
When a satellite revolves around the Earth, its centripetal force is provided by the gravitational force of attraction with the Earth. When an electron spins around the nucleus, the centripetal force is provided by the electrostatic force of at..
Illustration for a conservative force
Let us consider a body of mass 'm' being raised vertically to a height 'h' as in the figure (1). The work done is mgh. Suppose we take the body along the path as in figure (3). The work done during the horizontal motion is zero. Adding up the work done in the two vertical parts of the paths, we get..
Nature of Nuclear Forces
Nature of Nuclear Forces - Physicists have categorized all forces occurring in nature under gravitational, electromagnetic, strong nuclear and weak nuclear forces. Both gravitational and electromagnetic forces can be expressed as inverse s..
Contact and non-contact forces
Examples of contact forces are frictional forces, normal reaction forces, tensions and forces in collisions. Forces at a distance (non-contact forces) include gravitational forces of attraction between two masses, elec..
Which of the following equations correctly represents the phenomenon o..
Which of the following equations correctly represents the phenomenon of gravitational force (F) if m 1 and m 2 are the masses of the bodies between which the force of gravity exists and d is the distance between them. It is known that F varies directly as the masses an..
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