digital football & handball - revised
This applet allows you to explore the trajectory in space of a ball thrown
along the x axis, and well as the x and y positions of the ball as functions of time.
When you insert a wall at a suitable chosen position along the x axis, the ball
is reflected back to the person who threw the ball.
Does the trajectory in space change?
Does x(t) change?
Does y(t) change?
Where does the wall have to be placed?
Right click and hold to 'tumble' the 3D view.
[you may have to wait as long as a minute for this to work!]