1.

A body goes from A to B with a velocity of 20 m/s and comes back B to A with a velocityof 30 m/s. The average velocity of the body during the whole journey is (1) zero (3) 25 m/s (2) 24 m/s (4) none of these ​

Answer»

ANSWER:(3) 25 m/s

Explanation:

AVERAGE VELOCITY= a+b/2

                           =50/2=25m/s



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