COMEDK · Physics · 9. Gravitation
Weight of the body on the surface of the earth is 64 N . What will be the gravitational force acting on it, if it is taken up to a height equal to \(\left(\dfrac{1}{3}\right)^{r d}\) of the radius of the earth from the earth's surface?
- A 36 N
- B 4.8 N
- C 113.7 N
- D 48 N
Answer & Solution
Correct Answer
(A) 36 N
Step-by-step Solution
Detailed explanation
The weight of a body on the surface of the earth is given by \(W = mg = \dfrac{GMm}{R^2} = 64\) N, where \(M\) is the mass of the earth and \(R\) is the radius of the earth. When the body is taken to a height \(h = \dfrac{R}{3}\) above the surface of the earth, the distance from…
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