Use Matlab to find the acceleration and jerk of the body with velocity

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sarah 2022-11-11

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https://ww2.mathworks.cn/matlabcentral/answers/1848953-use-matlab-to-find-the-acceleration-and-jerk-of-the-body-with-velocity

回答： James Tursa 2022-11-12

v(t)=2000 ln[140000/(140000-2100t]-9.8t ,0<t<30

for time = 15 seconds, use forward method and start with step size = 3 seconds. make iterations of calculation until three significant digits.

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Jan 2022-11-11

编辑：Jan 2022-11-11

This sounds like a homework assignment. Please post, what you have tried so far and ask a specific question about Matlab. The forum will not solve your homework.

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Answer 1

James Tursa 2022-11-12

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https://ww2.mathworks.cn/matlabcentral/answers/1848953-use-matlab-to-find-the-acceleration-and-jerk-of-the-body-with-velocity#answer_1097608

Take the derivative of velocity to get acceleration.

Take the derivative of acceleration to get jerk.

Since you have an explicit expression for the velocity as a function of time, you can get explicit expressions for acceleration and jerk also. I have no idea why you are apparently instructed to use "forward iterations" since you can get the exact results analytically. Maybe you can post the entire text of the assignment so we can understand.