# calculating the velocity and distance of a rocket

조회 수: 20 (최근 30일)
Hossein 2024년 4월 24일
댓글: Torsten 2024년 4월 25일
A rocket gets up from the earth with speed 56.2917 and acceleration-9.81 .I need to solve the equation with ode45 command and get the velocity and distance in t=0:0.01:2.can you help me please
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Hossein 2024년 4월 25일
I tried but it wasn’t useful.
Torsten 2024년 4월 25일
Sorry, but more help would be the solution.

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### 답변 (1개)

Image Analyst 2024년 4월 24일
Why do you need differential equations? velocity = acceleration * time and distance = (1/2) a*t^2 + v*t + d0. You only are giving the downwards accelration due to gravity, not the acceleration due to the rocket thrust. And you are not giving the angle of the rocket but I guess you're assuming it's perfectly vertical.
Attached is a demo for a projectile with no drag with most parameters being variables that you can adjust the initial settings. It computes just about everything you can think of.
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Torsten 2024년 4월 24일
Maybe better
distance = (1/2) a*t^2 + v0*t + d0
Hossein 2024년 4월 25일
It’s one of the project rules to be solved by ode45

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