What will be the weight of a $120$ kg body if it is taken to $2000$ km above earth surface?

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Solution

Acceleration due to gravity at height h, $g_{h} = g_{s} (\frac{R}{R + h})^{2}$
Or $g_{h} = 9.8 (\frac{6400}{6400 + 2000})^{2} = 5.7 m / s^{2}$
Weight $W = m g_{h} = 120 \times 5.7 = 682 N$

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What will be the weight of a 120kg body if it is taken to 2000km above earth surface?

Acceleration due to gravity at height h, gh=gs(RR+h)2Or gh=9.8(64006400+2000)2=5.7 m/s2Weight W=mgh=120×5.7=682 N

What will be the weight of a $120$ kg body if it is taken to $2000$ km above earth surface?

Acceleration due to gravity at height h, $g_{h} = g_{s} (\frac{R}{R + h})^{2}$
Or $g_{h} = 9.8 (\frac{6400}{6400 + 2000})^{2} = 5.7 m / s^{2}$
Weight $W = m g_{h} = 120 \times 5.7 = 682 N$