KnowledgeBoat Logo

Physics

The gravitational force of attraction between two bodies of masses 60 kg and 40 kg separated by a distance 10 m is : (where G = 6.7 x 10-11 Nm2kg-2 )

  1. 1.60 x 10-9 N
  2. 2.8 x 10-11 N
  3. 1.0 x 10-11 N
  4. 1.6 x 10-11 N

Laws of Motion

9 Likes

Answer

1.60 x 10-9 N

Reason — As we know,

F=Gm1m2R2\text{F} = \text{G}\dfrac{\text{m}1\text{m}2}{\text{R}^2}

Given,

masses 60 kg and 40 kg, when separation = 10 m,

Hence,

F=6.7×10−11×60×40102F=1.60×10−9\text{F} = \dfrac{{6.7 \times 10^{-11} \times 60 \times 40}}{\text{10}^2} \\[0.5em] \text{F} = 1.60 \times 10^{-9}

Hence, F = 1.60 x 10-9 N

Answered By

2 Likes

Related Questions