photo credit: Des Burke-Kennedy
The wake in this image shows that the water-skier, Irish champion Rodney Watson, is moving in a curved path (high-res version). The tension in the tow line and the force of the water on his skis provide the centripetal (inward) acceleration to produce this curve. To find out how the centripetal acceleration depends on the radius and the period for circular motion, visit this Circular Motion Simulation.
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Wave on a String
Once you have clicked on the "simulation" link below, be sure to read the Java Security Advisory before running the simulation: To do that, click the "Read now" button on the yellow band near the top of the PhET page.
In the PhET applet, Wave on a String, you can drag the end of the string up and down to simulate wave motion. To learn more, visit Physic 2000's Standing Waves and Resonance.
(This feature was updated on May 5, 2013.)
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