java physics

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Click and drag the mouse to change the viewing direction. When radio button to rotate axes is selected, cursor keys change the x, y coordinates and with control key pressed down up and down keys change the z coordinate.

Applet shows the relation between integration and differentiation for a definite integral.

     Imagine the graph represents the position of a body moving along the x- axis with varying velocity. If you wanted the displacement between 1 s and 3 s, you could note the values of x coordinate (represented on the y axis) at these times and the difference would be the sought displacement. But let us get it by a different method.