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NEET 2019 · Acceleration Due to Gravity

Acceleration Due to Gravity question from NEET 2019

Q110NEET 2019Easy

Acceleration Due to Gravity

A body weighs 200 N on the surface of earth. How much will it weigh half way down to the centre of the earth?

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Answer: (c)

  1. Weight at depth: Wd=W(1−dR)W_d = W\left(1 - \frac{d}{R}\right).
  2. d=R2⇒Wd=200×12d = \frac{R}{2} \Rightarrow W_d = 200 \times \frac{1}{2}
  3. So the answer is (c) 100 N100\text{ N}.
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