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MHT CET 2019 (3 May, Shift 1) · Acceleration Due to Gravity

Acceleration Due to Gravity question from MHT CET 2019 (3 May, Shift 1)

Q109MHT CET 2019 · 3 MAY · SHIFT 1Easy

Acceleration Due to Gravity

A hole is drilled half way to the centre of the earth. A body weighs 300 N on the surface of the earth. How much will, it weigh at the bottom of the hole?

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Answer: (d)

Weight at depth: $W_d = W\left(1 - \frac{d}{R}\right)$ .
Half way to the centre: $d = \frac{R}{2}$ , so $W_d = 300 \times \frac{1}{2}$ .
So the answer is (d) $150\text{ N}$ .

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