hi i have a quiz due in a half hour and i NEED to know theanswer to this questio

Question

hi i have a quiz due in a half hour and i NEED to know theanswer to this question. Im not sure if mine is right so pleasesolve and give me an answer as to what you think it is!!thanks!!!! Two cars are initially 121km apart and traveling toward eachother on a straight stretch of freeway. One car is moving a 68 m/sand the other is moving at 49 m/s. In how many seconds will theypass each other? hi i have a quiz due in a half hour and i NEED to know theanswer to this question. Im not sure if mine is right so pleasesolve and give me an answer as to what you think it is!!thanks!!!! Two cars are initially 121km apart and traveling toward eachother on a straight stretch of freeway. One car is moving a 68 m/sand the other is moving at 49 m/s. In how many seconds will theypass each other?

Explanation / Answer

           Given that the separation between the two cars is d = 121 km =121*103 m            Initial velocities are u1 = 68 m/s and u2 = 49 m/s ----------------------------------------------------------------------------------------            Total distance is d = u1*t + u2*t                                      t = d / ( u1 + u2 )                                         =121000 m / ( 68 m/s + 49m/s )                                         =1034.18s                             

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