Question

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Answer 1

Given:-

• Mass of first person (M) = 50 kg

• Mass of second person (m) = 60 kg

• Distance between them (d) = 1 m

We know that,

• Gravitational force (F) = GMm/d²

[ where G is the gravitational constant ]

• G = 6.67 × 10⁻¹¹ Nm²/kg²

So,

⟶ F = (6.67) × (10)⁻¹¹ × (50) × (60) / (1)²

⟶ F = 6.67 × 5 × 6 × 10² × 10⁻¹¹

⟶ F = 200.1 × 10⁻¹¹⁺²

[ aᵐ × aⁿ = aᵐ⁺ⁿ ]

⟶ F = 2001 × 10⁻¹ × 10⁻¹¹⁺²

⟶ F = 2.001 × 10³⁻¹⁻⁹

:⟶ F = 2.001 × 10⁻⁷ N

∴ The gravitational force between them is 2.001 × 10⁻⁷ N.