Advertisements
Advertisements
Question
What happens to the force between two objects, if the mass of one object is doubled?
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
If the moon attracts the earth, why does the earth not move towards the moon?
Choose the correct alternative:
Acceleration due to gravity increases/decreases with increasing altitude.
Choose the correct answer from among the given ones:
For the problem 8.10, the direction of the gravitational intensity at an arbitrary point P is indicated by the arrow (i) d, (ii) e, (iii) f, (iv) g.
State and explain Kepler's laws of planetary motion. Draw diagrams to illustrate these laws.
A person brings a mass of 1 kg from infinity to a point A. Initially the mass was at rest but it moves at a speed of 2 m s −1 as it reaches A. The work done by the person on the mass is −3 J. The potential at A is
Two small bodies of masses 10 kg and 20 kg are kept a distance 1.0 m apart and released. Assuming that only mutual gravitational forces are acting, find the speeds of the particles when the separation decreases to 0.5 m.
State whether the gravitational force between two masses is attractive or repulsive ?
How will the force of gravitation between two objects change if the distance between them is:
Halved
The distance-time values for an object moving along straight line are given below:
| Time (s) | Distance (m) |
| 0 | 0 |
| 1 | 1 |
| 2 | 8 |
| 3 | 27 |
Particles of masses 2M, m and M are respectively at points A, B and C with AB = ½ (BC). m is much-much smaller than M and at time t = 0, they are all at rest (Figure). At subsequent times before any collision takes place ______.
