a man who is 75 kg is on the surface of the earth's mass is 6*10²⁴ Kg if the radius of the earth 6380 km calculate the force of attraction between them.(Given,G=6.67*10-¹¹Nm²/kg²
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Answer: 737.25 N
Explanation:
Given,
Mass of earth(m₁)=6×10²⁴kg
Mass of Man(m₂)=75kg
Radius of earth(r)=6380km
=6,380,000m
Gravitational force(G)= 6.67×10⁻¹¹ Nm²/kg²
Force of attraction(F)=?
We know,
F= Gm₁m₂
⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
r²
= 6.67×10⁻¹¹ × 6×10²⁴ × 75
⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
6,380,000²
= 737.25 N
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