5. Many solid-fuel rocket engines consist of three stages. Once the first stage

Question

5. Many solid-fuel rocket engines consist of three stages. Once the first stage burns out, it separates from the missile and the second stage lights. Then the second stage burns out and separates, and the third stage lights. Finally, once the third stage burns out, it also separates from the missile. Assume that the following data approximately represent the times during which each stage burns: Stage 0-100 seconds Stage 2 101-170 seconds Stage 3 171-260 seconds Write a function that reads a single input (time) to determine whether the missile is in Stage 1 flight, Stage 2 flight, Stage 3 flight, or free flight (unpowered). If the user enters a negative time, the function should return an error message. You should run and show all possible test cases that your function file works.

Explanation / Answer

time=input('Time since the rocket was launched: ');

stage = 0;

if time < 100
    stage = 1;
elseif time < 170
    stage = 2;
elseif time < 260
    stage = 3;

elseif time < 0
    fprintf('error')
end

fprintf('The rocket is in stage%d ', stage)

out put:-

Time since the rocket was launched : 50

The rocket is in stage 1

Time since the rocket was launched :150

The rocket is in stage 2

Time since the rocket was launched :250

The rocket is in stage 3

Time since the rocket was launched :-100

error

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