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NEET 1994 (AIPMT) · Acceleration Due to Gravity

Acceleration Due to Gravity question from NEET 1994 (AIPMT)

Q133NEET 1994 · AIPMTMedium

Acceleration Due to Gravity

The radius of earth is about 6400 km and that of mars is 3200 km. The mass of the earth is about 10 times mass of mars. An object weighs 200 N on the surface of earth. Its weight on the surface of mars will be

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Answer: (c)

$\frac{g_m}{g_e} = \frac{M_m}{M_e}\left(\frac{R_e}{R_m}\right)^2 = \frac{1}{10} \times 2^2 = 0.4$
$W_m = 0.4 \times 200$
So the answer is (c) $80\text{ N}$ .

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