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Two cars start in a race with velocities...

Two cars start in a race with velocities `u_(1)` and `u_(2)` and travel in a straight line with acceleration 'a' and b .If both reach the finish line at the same time,the range of the race is

A

`(2(u_1-u_2))/((beta - alpha)^2) (u_1 beta - u_2 alpha)`

B

`(2(u_1-u_2))/(beta + alpha) (u_1 alpha - u_2 beta)`

C

`(2(u_1-u_2)^2)/((beta - alpha)^2)`

D

`(2u_1u_2)/(beta alpha)`

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The correct Answer is:
A
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