Answer:
Maximum height reached by the rocket is

total time of the motion of rocket is given as

Explanation:
Initial speed of the rocket is given as

acceleration of the rocket is given as

engine stops at height h = 150 m
so the final speed of the rocket at this height is given as



so maximum height reached by the rocket is given as the height where its final speed becomes zero
so we will have



Now the total time of the motion of rocket is given as
1) time to reach the height of 150 m



2) time to reach ground from this height



so total time of the motion of rocket is given as

The answer is 0.001 , 1000 grams = 1 Kilograms
Answer:
The ratio of
and
is 0.9754
Explanation:
Given that,
Distance z = 4.50 d
First equation is


Second equation is

We need to calculate the ratio of
and 
Using formula


Put the value into the formula


Hence, The ratio of
and
is 0.9754
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