problem08_40

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

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8.40: a) In the notation of Example 8.10, with the large marble (originally moving to the right) denoted as s. m 200 . 0 ) 00 . 1 ( ) 00 . 3 ( , 2 2 = + B A v v A The relative velocity has switched direction, so . m 600 . 0 2 2 s v v B A - = - Adding these eliminates 2 B v to give s, m 100 . 0 or s, m 400 . 0 ) 00 . 4 ( 2 2 - = - = A A v v with the minus sign indicating a final velocity to the left. This may be substituted into either of the two relations to obtain s; m 500 . 0 2 = B v or, the second of the above relations may be multiplied by 3.00 and
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Unformatted text preview: subtracted from the first to give s, m 00 . 2 ) 00 . 4 ( 2 = B v the same result. . 10 5 . 4 , 10 5 . 4 c) s m kg 009 . s, m kg 009 . b) 4 4-- = -= = -= B A B A K K P P Because the collision is elastic, the numbers have the same magnitude....
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