state Newton's law of gravitation. what is the relation between ‘g'

1.	state Newton's law of gravitation. what is the relation between ‘g' and ‘cr'.find the time taken by the body protected vertically up with a speed of ‘u' to return back to the ground
Answer» G stands for Newton's universal gravitational constant, whereas g stands for the acceleration due to gravity at a certain point.G = 6.67300 × 10-11 G is a constant throughout space and time and it is a scalar quantity.g = 9.8 m.s -2 , g is acceleration due to gravity which is a variable quantity and a vector qualtity.According to Newton's law of universal gravitation the force of attraction between two bodies is given byF = GMm/r2---------- (i) From Newton's second law of motion the weight of a body of mass m is F = mg -----------------(ii) From (i) and (ii)mg = GMm/r2org = GM/r2

state Newton's law of gravitation. what is the relation between ‘g' and ‘cr'.find the time taken by the body protected vertically up with a speed of ‘u' to return back to the ground

Answer»

G stands for Newton's universal gravitational constant, whereas g stands for the acceleration due to gravity at a certain point.G = 6.67300 × 10-11 G is a constant throughout space and time and it is a scalar quantity.g = 9.8 m.s

-2

, g is acceleration due to gravity which is a variable quantity and a vector qualtity.According to Newton's law of universal gravitation the force of attraction between two bodies is given byF = GMm/r2---------- (i)

From Newton's second law of motion the weight of a body of mass m is

F = mg -----------------(ii)

From (i) and (ii)mg = GMm/r2org = GM/r2

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