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Question

# The gravitational force of attraction between two bodies of masses 40 kg and 80 kg separated by a distance of 15 m is: (Take Gravitational constant, G=6.673×10−11Nm2kg−2)

A

9.49×1010 N

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B

8.49×1010 N

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C

7.49×1010 N

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D

6.49×1010 N

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Solution

## The correct option is A 9.49×10−10 N Given: mass of first body m1=40 kg mass of second body m2=80 kg distance between two bodies, R=15 m G=6.673×10−11Nm2kg−2 Acc. to Newton's law of gravitation, Gravitational force, F=Gm1m2R2 So, F=6.673×10−11×40×80152 On solving, we get F=9.49×10−10 N

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