Advertisements
Advertisements
Question
What happens to the force between two objects, if the mass of one object is doubled?
Advertisements
Solution
From the relationship,
F = `(Gm_1m_2)/R^2`
If the mass of one object (say body 1) is doubled, then
F' = `(G xx (2m_1)m_2)/R^2`
F = `(2 xx Gm_1m_2)/R^2`
F = 2F
Thus, the gravitational force between the two objects gets doubled.
APPEARS IN
RELATED QUESTIONS
How does the force of gravitation between two objects change when the distance between them is reduced to half?
Choose the correct alternative:
Acceleration due to gravity increases/decreases with increasing depth. (assume the earth to be a sphere of uniform density).
At noon, the sun and the earth pull the objects on the earth's surface in opposite directions. At midnight, the sun and the earth pull these objects in same direction. Is the weight of an object, as measured by a spring balance on the earth's surface, more at midnight as compared to its weight at noon?
Three equal masses m are placed at the three corners of an equilateral triangle of side a. Find the force exerted by this system on another particle of mass m placed at (a) the mid-point of a side, (b) at the centre of the triangle.
A thin spherical shell having uniform density is cut in two parts by a plane and kept separated as shown in the following figure. The point A is the centre of the plane section of the first part and B is the centre of the plane section of the second part. Show that the gravitational field at A due to the first part is equal in magnitude to the gravitational field at B due to the second part.
State whether the gravitational force between two masses is attractive or repulsive ?
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 total time of journey of the ball .
An apple falls towards the earth due to its gravitational force. The apple also attracts the earth with the same force. Why do we not see the earth rising towards the apple? Explain.
Give the applications of universal law gravitation.
The Superposition Principle states that the net gravitational force on an object is ______.
