A ball is dropped in front of a meter stick and lit by a strobe light. A long exposure photograph captures the position of the ball at each evenly spaced flash of light. The acceleration of the ball can then be measured from the photo. Note that the frame rate of the video capture (30fps...
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Watch this silent film with descriptive boards of a demonstration on the velocity of light as performed by Doc Edgerton and some of his assistants.
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A cart moving at constant velocity shoots a ball straight upwards. Since the ball has the same translational velocity as the cart, it is caught when it comes back down.
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How fast can a peregrine falcon fly? One scientist aims to find out by skydiving along with the birds. See All National Geographic Videos video.nationalgeographic.com
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