a body goes from a to b with a velocity 20 m/s and come back from b to a with a velocity of 30 metre per second. the average velocity of the body during the whole journey is
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Answer:
zero
Explanation:
Velocity = Displacement
Time
Displacement = 0 ( A to B then B to A )
Velocity = 0
Time
Avg. VELOCITY = 0 m/s ( zero )
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