Gravity

Gravitational Constant According to Newton’s law of gravitation, force of attraction between two bodies having masses M and m is, F = GMm/d2, here G…

Kepler’s Law about Motion of the Planets From ancient time scientists had the keen interest in the motion of planets. In sixteenth-century Tycho-Brahe, a Danish…

Kepler’s Law from Newton’s law Kepler’s Laws are magnificent as an explanation of the motions of the planets. However, they present no clarification of why…

Verification of Galileo’s Law of a Falling body Theory: When a body is allowed to fall it falls downward at the action of gravity. Normally,…

Galileo’s three laws about Falling Bodies We often see that when a heavy body and a light body are allowed to fall from the same…

Force due to gravity An attractive force acts between any two bodies in this universe. Generally attraction between two bodies is called gravitation. But the…

A German astronomer, Johann Kepler, first stated the laws of planetary motion. The three laws of planetary motion are: The law of orbits: Every planet…

The time period of rotation of some artificial satellites is the same as that of the earth. These satellites appear to be stationary to the…

The spacecraft revolved around the earth about its prescribed orbits are known as artificial satellites. To revolve round the earth, the artificial satellites must be…

Gravitation The force of attraction between any two bodies of the universe is called gravitation. The attraction between the sun and the earth is an…