2. During the first 18 min of a 60 min trip, a car has an averagespeed of 11 ms-1. What should be the average speed forremaining 42 min so that car is having an average speed of21ms for the entire trip?(a) 25.3 ms-1(c) 31 ms-1(b) 29.2 ms(d) 35.6 ms

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Q. During the first

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