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 ]

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