how to get the graph for trajectory of a ball thrown at an angle?

we know that a ball thrown at angle has a parabolic path so what are the requirements to get a 3-d or 2-d graph for it's trajectory.. tell by any method either by simulink or matlab

[the cyclist]

Please read this tutorial and then try asking your question again.

Answer 1

[Tim Berk]

• Option 1: Look up the equations that describe the trajectory, program them in matlab and plot.
• Option 2: Work out the equations yourself, program them in matlab and plot.
• Option 3 (this is the most fun option): Simulate the trajectory in matlab.

Edited-out the entire solution to your homework problem.

You can simulate this by starting with initial conditions given by the angle and velocity magnitude. These should give you the (constant) horizontal velocity and (initial) vertical velocity. You should be able to work out the change in vertical velocity as function of time (gravity).

Now you can loop through time, changing the vertical velocity at each time step and recalculating the new horizontal and vertical positions.

[Walter Roberson]

We do not encourage giving complete code for homework questions :(

[Tim Berk]

I got over-enthusiastic. Changed it.

[Jan]

Thanks, Tim. This is useful for the forum and the asking students also in a long term of view. +1

[James Tursa]

+1 for editing the answer.

Answer 2

[Image Analyst]

Try my attached projectile demo. It computes and plots just about everything you could possibly want. Adapt as needed.

By the way, the answer to your direct (and only) question "what are the requirements to get a 3-d or 2-d graph?" is to use MATLAB and call plot() or plot3(). You have not asked anything else.