Projectile motion with friction?

[Phrak]

Loup.

Here is a fairly good animation you can run.

"[URL
http://www.compadre.org/PSRC/items/detail.cfm?ID=7196

Click on Modular Approach to Physics: Projectile Motion: One Ball.

It will give you a good intuitive understanding of the problem.

I recommend making the grid, trace, and velocity visible with the buttons. Drag the end of the velocity arrow around keeping it at 100 m/s. Change the drag coefficient to 0.01[corrected] or the air drag will not be significant. In this applet the drag is proportional to v squared, as it should be, and if their language used in the applet is correct.

 

[loup]

!
I cannot open any of the animation!
:(

 

[Redbelly98]

Phrak, good find! But I think you meant 0.01 for the drag coef.

You can also enter numbers for the velocity and angle, but you must hit the "Enter" key for them to register.

 

[Redbelly98]

!
I cannot open any of the animation!
:(

You may need to install java, if your computer does not already have it.
http://www.java.com/en/download/manual.jsp

 

[Phrak]

Phrak, good find! But I think you meant 0.01 for the drag coef.

You can also enter numbers for the velocity and angle, but you must hit the "Enter" key for them to register.

Thanks on all points, Redbelly. I was much to critical of the software--it's excellent. The use of the energy key makes all the difference.