Gravitation Question 55

Question: A body weight W newton at the surface of the earth. Its weight at a height equal to half the radius of the earth will be [UPSEAT 2002]

Options:

A) $ [\frac{W}{2}] $

B) $ [\frac{2W}{3}] $

C) $ [\frac{4W}{9}] $

D) $ [\frac{8W}{27}] $

Show Answer

Answer:

Correct Answer: C

Solution:

$ [g’=g{{\left( \frac{R}{R+h} \right)}^{2}}=\frac{4}{9}g$

$\therefore W’=\frac{4}{9}W] $



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