problem12_46

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

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12.46: a) From symmetry, the net gravitational force will be in the direction 45 x + ° the from -axis (bisecting the x and y axes), with magnitude ° + × - 45 sin ) m 50 . 0 ( ) kg 0 . 1 ( 2 ) ) m 50 . 0 ( 2 ( ) kg 0 . 2 ( ) kg 0150 . 0 )( kg m N 10 673 . 6 ( 2 2 2 2 11 N. 10 67 . 9 12 - × = b) The initial displacement is so large that the initial potential may be taken to be zero.
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Unformatted text preview: From the work-energy theorem, . ) m 50 . ( ) kg . 1 ( 2 m) (0.50 2 ) kg . 2 ( 2 1 2 + = Gm mv Canceling the factor of m and solving for v , and using the numerical values gives s. m 10 3.02 5-× = υ...
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This document was uploaded on 02/05/2008.

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