Saturday, 3 January 2015

Sound of a Striking Axe



              Sound is said to travel in air at about 1100 feet per second. A man hears the axe strike the tree 11/5 seconds after he sees it strike the tree. How far would you say the man is from the wood chopper?

Answer:  2420 Feet: 1100 ft   / 1 sec   = x ft / (11/5) sec Then x = 2420

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