A directory of useful objects found on the web for teaching Maths.
Shoot a cannon to see how high and far the ball flies.
This Java applet demonstrates the classic kinematics problem of the flight of a cannonball shot over flat ground. While there is no pretty cannon, it does use correct units and gives a clear picture of trajectories. There are options to show trails of the projectile or to turn on a simple air friction. You have control over the initial velocity, initial angle and mass.
29 April 2012 Edit: 20 December 2017
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