Advertisements
Advertisements
Question
How will the force of gravitation between two objects change if the distance between them is:
Infinite
Advertisements
Solution
We know that law of gravitation.
F = G ( m1 X m2)/R2.
If distance between them is infinite then put R = infinite.
F = G( m1 X m2)/ R2.
F1 = 0.
APPEARS IN
RELATED QUESTIONS
What happens to the force between two objects, if the mass of one object is doubled?
A body is suspended from a spring balance kept in a satellite. The reading of the balance is W1 when the satellite goes in an orbit of radius R and is W2 when it goes in an orbit of radius 2 −R.
Inside a uniform spherical shell
(a) the gravitational potential is zero
(b) the gravitational field is zero
(c) the gravitational potential is same everywhere
(d) the gravitational field is same everywhere
Consider a planet moving in an elliptical orbit round the sun. The work done on the planet by the gravitational force of the sun
(a) is zero in any small part of the orbit
(b) is zero in some parts of the orbit
(c) is zero in one complete revolution
(d) is zero in no part of the motion.
A solid sphere of mass m and radius r is placed inside a hollow thin spherical shell of mass M and radius R as shown in the following figure . A particle of mass m' is placed on the line joining the two centres at a distance x from the point of contact of the sphere and the shell. Find the magnitude of the resultant gravitational force on this particle due to the sphere and the shell if (a) r < x < 2r, (b) 2r < x < 2R and (c) x > 2R.
The acceleration produced by a force in an object is directly proportional to the applied _________ And inversely proportional to the _________ Of the object.
Where will you weigh more: at the centre of the earth or at the surface of the earth?
What does a force do in the following case?
You apply brakes to a running car.
Solve the following problem.
Calculate the acceleration due to gravity at a height of 300 km from the surface of the Earth. (M = 5.98 × 1024 kg, R = 6400 km).
The Superposition Principle states that the net gravitational force on an object is:
