Advertisements
Advertisements
प्रश्न
State Newton's law of gravitation. What is the difference between:
Gravity and gravitation
Advertisements
उत्तर
Newton law of gravitation is that every object in the universe attracts every other object with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
Gravity is the force of attraction between the object and the earth whereas gravitation refers to the force of attraction that exists between any two bodies that possess mass.
APPEARS IN
संबंधित प्रश्न
State and explain Kepler's laws of planetary motion. Draw diagrams to illustrate these laws.
Write the three laws given by Kepler. How did they help Newton to arrive at the inverse square law of gravity?
A person sitting in a chair in a satellite feels weightless because
A tunnel is dug along a chord of the earth at a perpendicular distance R/2 from the earth's centre. The wall of the tunnel may be assumed to be frictionless. Find the force exerted by the wall on a particle of mass m when it is at a distance x from the centre of the tunnel.
The law of gravitation gives the gravitational force between :
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 initial velocity of the ball.
Where will you weigh more: at the moon's surface or at the earth's surface?
Molecules in air in the atmosphere are attracted by gravitational force of the earth. Explain why all of them do not fall into the earth just like an apple falling from a tree.
Ocean tides on Earth are mainly caused by ______.
