Gravitational Field (Explained As it Should)

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This lesson covers the calculation of gravitational force, the meanings of the gravitational constant
G and acceleration due to gravity g, the concept of escape velocity, and the launch of artificial satellites. It also distinguishes between natural satellites, like moons, and artificial satellites used for various applications.
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Objectives:
(1) Calculate the gravitational force between two masses

(2) Explain the meaning of ‘G’ and show that ‘g’ is the force per unit mass on the Earth’s surface.

(3) Explain the concept of Escape Velocity

(4) Explain how artificial satellites are launched
(5) Distinguish between natural and artificial satellite.

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