Physics
Grade-10
Easy

Question

The gravitational force of attraction between two bodies of masses 3 kg and 2 kg, separated by 4 m is ___ N.

  1. 3G
  2. (3/8) G
  3. (3/4) G
  4. (5/14) G

hintHint:

Substitute the values in the formula of gravitational force.

The correct answer is: (3/8) G


    The correct option is b)(3/8) G.
    F=fraction numerator G M m over denominator R squared end fraction
    Here g is gravitational constant= 6.67 x 10-11
    M= 3 kg
    m= 2kg
    R= 4 m
    substituting the values in the formula,
    F=equals fraction numerator 6.67 space x space 10 to the power of negative 11 end exponent space x space 3 x 2 over denominator 4 squared end fraction
equals fraction numerator 6.67 space x space 10 to the power of negative 11 end exponent space x space 6 over denominator 16 end fraction
equals space 3 over 8

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