Advertisements
Advertisements
Question
What is the importance of the universal law of gravitation?
Advertisements
Solution
The importance of the universal law of gravitation is as follows:
- Through this law, we can find the mass of the earth, sun, etc.
- Using this law, the distance between planets and other bodies is found.
- Due to this force, the moon moves around the earth.
- It is understood from this law that the tides in the sea occur due to the moon and the sun.
APPEARS IN
RELATED QUESTIONS
Answer the following:
You can shield a charge from electrical forces by putting it inside a hollow conductor. Can you shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?
State two applications of universal law of gravitation.
Two spherical balls of mass 10 kg each are placed 10 cm apart. Find the gravitational force of attraction between them.
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 final velocity of the ball on reaching the ground .
Is the law of gravitation applicable in case of the sun and the moon?
Name and state the action and reaction in the following case:
A book lying on a table.
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 ______.

Answer the following questions in reference to the figure below:

- Which relation is shown in the figure?
- What will happen if the mass of one of the objects is doubled?
If three equal masses m are placed at the three vertices of an equilateral triangle of side 1/m then what force acts on a particle of mass 2m placed at the centroid?
Who measured the value of the Universal Gravitational Constant G using the Cavendish balance?
