Calculate the force of gravitation between a man weighing 60 kg and a boy weighing 20 kg standing 2 metres apart.
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Answer:
Ans is 20.01 * 10^-6
Explanation:
g = G*m1*m2/d^2
G is a constant = 6.67*10^-11
so
=6.67*10^-11 * 60*20/(0.02)^2 (because in metres)
=6.67*10^-11*6*10*20/0.0004
=6.67*10^-11*6*10*20/4/10^3
=6.67*10^-11*6*10*20*10^3/4
=6.67*10^-7*6*5
=6.67*10^-7*3*10
=6.67*10^-6*3
=20.01*10^-6
Ans = 20.01*10^-6
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