Question

# Calculate the force between two point masses of 50 kg and 100 kg separated by a distance of 10 m.444.5×10−10 N 3.335×10−9 N 6.67×10−10 N 2.27×10−11 N

Solution

## The correct option is B 3.335×10−9 N Given, mass of first body, m1=50 kg and mass of second body, m2=100 kg Distance between the two masses is, r=10 m. According to Universal law of gravitation, force of attraction between two bodies is F=Gm1m2r2 where, G is the gravitational constant and G=6.67×10−11 Nm2kg−2 ∴ F=6.67×10−11×50×100102 ⇒ F=33.35×10−10 N ⇒ F=3.335×10−9 N

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