Problem Pictures
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PP2 CD-ROM cover

This picture is taken from Problem Pictures Themes, a CD-ROM of photographs with activities for mathematics teaching.

Bouncing ball

A rapidly flashing light freezes the motion of this bouncing ball.

Why does the path of the ball trace out a curve rather than a straight line? Why are the images of the ball closer together at the top of the picture? Try to estimate the rate at which the light was flashing.

Sketch a graph that shows the speed of this ball against time.

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The photographs and screen images on this website are copyright and may not be reproduced without permission. Copyright Richard Phillips 2001/2007. Page updated 13 July 2005.