problem06_12

University Physics with Modern Physics with Mastering Physics (11th Edition)

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6.12: (a) Estimate: 1m s v / (walking) 2m s v / (running) 70kg m Walking: J 35 ) s / m 1 )( kg 70 ( 2 2 1 2 2 1 = = = mv KE Running: J 140 ) s / m 2 )( kg 70 ( 2 2 1 = = KE (b) Estimate: s / m 30 s / ft 88 mph 60 = v kg 2000 m J 10 9 ) s / m 30 )( kg 2000
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Unformatted text preview: ( 5 2 2 1 = = KE (c) mgh W KE = = gravity Estimate m 2 h J 20 ) m 2 )( s / m 8 . 9 )( kg 1 ( 2 = KE...
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This document was uploaded on 02/04/2008.

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