26. What is acceleration due to gravity? What is it's value on the earth in SI unit? Derive the
acceleration due to gravity.
(1+1+3=5)
27. Calculate the gravitational force between the sun and the Earth. It is given that mass of the sun=2x
1030 kg, Mass of the Earth =6 x 1024 kg and the distance between the Earth and the sun is 1.5x 10''m.
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26)
Acceleration due to gravity is the acceleration gained by an object due to gravitational force. Its SI unit is m/s2. It has both magnitude and direction, hence, it's a vector quantity. Acceleration due to gravity is represented by g. The standard value of g on the surface of the earth at sea level is 9.8 m/s2.
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