1.

A partical moving along straight line from a to b for the first 1/4th distance with speed v1tha next half of distance emwith speed 2v1 and the last 1/4th with speed 3v1.Find the average speed

Answer»

ANSWER:

Explanation:

4/VAVG = 1/v1+1/2v1+1/2v1+1/3v1

4/ Vavg = (6+3+3+2)/6v1

4/Vavg = 14/6v1

Vavg = 24v1/14



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