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JEE Main 2023 (31 Jan, Shift 2) · Acceleration Due to Gravity

Acceleration Due to Gravity question from JEE Main 2023 (31 Jan, Shift 2)

Q53JEE Main 2023 · 31 JAN · SHIFT 2Easy

Acceleration Due to Gravity

A body weight WW, is projected vertically upwards from earth's surface to reach a height above the earth which is equal to nine times the radius of earth. The weight of the body at that height will be:

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Answer: (c)

  1. At h=9Rh = 9R the distance from the centre is r=10Rr = 10R.
  2. Wh=W(R10R)2=W100W_h = W\left(\frac{R}{10R}\right)^2 = \frac{W}{100}
  3. So the answer is (c) W100\frac{W}{100}.
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