Two bodies of masses 3.0 kg and 2.0 kg are separated by a distance of 50 cm. Calculate the force of attraction between them. [G = 6.67 x 10¯¹¹ Nm² kg² ]

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A. 1.6 x 10−9N
B. 1.3 x 103N
C. 2.3 x 103N
D. 5.0x 103N

Correct Answer:

Option A = 1.6 x 10−9N

Explanation

Using the formula

F = Gm1m2/r2
= 6.67×10−11×3.0×2.0/(50)2
= 40.02×10−11/2500
= 1.6 x 10−9N

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