Question

A rocket of mass m is launched vertically from surface of the earth with an initial speed v. Assuming the radius of earth to be R and negligible resistance the maximum height attained by the rocket above the surface of the earth is

Answer 1

We can get the answer by energy conservation laws
Total energy at surface = total energy at the highest point
- GMm/ R +1/2mv2= GMm/(R+h) +0
Now get h

Answer 2

Explanation:

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