Answers
a) b) Time taken by A to complete the race, t_A = 100/8 = 12.5 sec Time taken by B to complete the race, t_B = 100/9.3 + 2 = 10.75 + 2 = 12.75 sec since t_A < t_B 'A' wins the race c) Let winner be ahead by distance 'S' then S = 100 - 9.3 times (12.5 - 2) = 100 - 97.65 S = 2.35 m d) Let the time 't' should be delayed by 'B' then 100/8 = t + 100/9.3 t = 12.5 - 10.75 t = 1.75 sec
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