Question

G, Solve the following numerical problems,
1. Calculate the value of gravitational force between two objects of mass 40 kg each separated by a distance of 0.4m.take G = 6.7 ×​

Answer 1

f= gm^2/r^2

= 6.7×10^-11×40×40÷ 0.4×0.4

= 67000×10^-11 N

Answer 2

Answer:

6.67 × 10⁻⁸ N

Explanation:

Given,

m₁= 40 kg

m₂ = 40 kg

r = 0.4 m

∵ Force of Gravitation F = Gm₁m₂

                                               r²

                                        = 6.67 × 10 ⁻¹¹ × 40 × 40

                                                       0.4²

                                        = 6.67 × 10⁻¹¹ × 16 × 10³

                                                       16

                                        = 6.67 × 10 ⁻⁸ N

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