Question

1) What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? (Mass of the earth is and radius of the earth is.)​

Answer 1

#Answer:  9.77 N

#Explanation:-

Mass of the earth is 6 x 10∧24 kg

Radius of the earth is 6.4 x 10∧6 m

#Given:-

M = 6×10^24 kg

m = 1 kg

R = 6.4×10^6 m

#Solution:-

Gravitational force between earth and the object is given by -

F = GMm/R²

F = 6.67×10^-11 × 6x10^24 × 1 / (6.4x10^6)²

F = 9.77 N

Therefore, gravitational force between the earth and an object is 9.77 N.

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