Answer:
Let m = mass of the rocket, M = mass of the Mars and R =
radius of Mars. Let be
the initial velocity of rocket.
Initial K.E.
Initial P.E.
Since,
20% of K.E. is lost, only 80% is left behind to reach the height.
Therefore,
Total
initial energy available
If
the rocket reaches the highest point which is at a height h from the surface of
Mars, its .K.E. is zero and
Using
principle of conservation of energy, we have
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