ch02-p070 - 70 To solve this problem we note that velocity...

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Similarly, the velocity of particle 2 is 2 22 0 2 20.0 ( 8.00 ) 20.0 4.00 . v v a dt t dt t =+ = + = ³³ The condition that 12 vv = implies 12.0 3.00 20.0 4.00 4.00 12.0 17.0 0 tt t t +=− ¡ +− = which can be solved to give (taking positive root) ( 3 26)/ 2 1.05 s. t =−+ = Thus, the velocity at this time is 12.0(1.05) 3.00 15.6 m/s. == + = 70. To solve this problem, we note that velocity is equal to the time derivative of a
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