Solve the following numericals 1. Calculate the force of attraction between two planets, of mass 650 × 10 ^20 kg and 45 × 10^ 22 kg. Distance between them is 3 × 10^ 7m. cm.
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Given:
Mass of planet 1 = 650 × 10^20 kg
Mass of planet 2 = 45 × 10^22kg
Distance between planet 1 and 2 = 3×10^7m
To find :
The force of attraction between the two planets.
Solution :
Force of gravitation between them = GMm/ r²
= (6.67×10^-11 × 65×10^21 × 45×10^22) / 3×10^7
= 6.435 × 10^42 N
Hence, the force of attraction between them is 6.435×10^42 N
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