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How to find the time for the max height of the rocket. MATLAB

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Matthew Lozancich 2018-1-5

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评论： Walter Roberson 2019-10-6

采纳的回答： Walter Roberson

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Hi there! Doing a little final practice and was asked to find the max height and the time of the max height of the rocket. I can't figure out the code for the time.

function rocket
g=9.81;
vi=50;
yi=0;
theta=(pi/3);
t=0:0.1:12;
x=vi*cos(theta)*t;
y=yi+vi*sin(theta)*t-((1/2)*g*(t.^2));
plot(t,y)
Maxheight=max([y(:)])
end

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Walter Roberson 2018-1-5

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https://ww2.mathworks.cn/matlabcentral/answers/375802-how-to-find-the-time-for-the-max-height-of-the-rocket-matlab#answer_298911

在 MATLAB Online 中打开

[Maxheight, timeindex] = max(y);

Now timeindex tells you which entry in y was maximum, and you can use that index to figure out what the corresponding time was.

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Abdullah Albayati 2019-10-6

how to find the corresponding time was.

Walter Roberson 2019-10-6

t(timeindex)

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Image Analyst 2018-1-6

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https://ww2.mathworks.cn/matlabcentral/answers/375802-how-to-find-the-time-for-the-max-height-of-the-rocket-matlab#answer_298927

projectile.m

See my attached demo for a projectile, which computes just about everything you could possibly think to measure.

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