Advertisements
Advertisements
Question
What happens to the force between two objects, if the masses of both objects are doubled?
Advertisements
Solution
If the masses of both the objects are doubled, then
F''' = `(G xx (2m_1) xx (2m_2))/R^2`
= `(4Gm_1m_2)/R^2`
= 4F
Thus, the gravitational force between the two objects becomes 4 times.
RELATED QUESTIONS
What happens to the force between two objects, if the mass of one object is doubled?
State the universal law of gravitation. Name the scientist who gave this law.
Four particles of equal masses M move along a circle of radius R under the action of their mutual gravitational attraction. Find the speed of each particle.
A particle of mass 100 g is kept on the surface of a uniform sphere of mass 10 kg and radius 10 cm. Find the work to be done against the gravitational force between them to take the particle away from the sphere.
Explain the following:
People often shake the branches of a tree for getting down its fruits.
A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2, find: the initial velocity of the ball.
How will the force of gravitation between two objects change if the distance between them is:
Almost zero
Name and state the action and reaction in the following case:
Hammering a nail.
Write the answer of the question with reference to laws of gravitation.
Write the value of the universal gravitational constant.
For an object outside a uniform solid sphere, from where is the sphere's mass considered to act?
