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Question: Answered & Verified by Expert
The mass of the moon is $7.34 \times 10^{22} \mathrm{~kg}$ and the radius is $1.74 \times 10^6 \mathrm{~m}$. The value of gravitation force will be
PhysicsGravitationJEE Main
Options:
  • A $1.45 \mathrm{~N} / \mathrm{kg}$
  • B $1.55 \mathrm{~N} / \mathrm{kg}$
  • C $1.75 \mathrm{~N} / \mathrm{kg}$
  • D $1.62 \mathrm{~N} / \mathrm{kg}$
Solution:
2475 Upvotes Verified Answer
The correct answer is: $1.62 \mathrm{~N} / \mathrm{kg}$
$g=\frac{G M}{R^2}=\frac{6.67 \times 10^{-11} \times 7.34 \times 10^{22}}{\left(1.74 \times 10^6\right)^2}=1.62 \mathrm{~N} / \mathrm{kg}$

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