A manwalks 7 km in 2 hrs and 2 km in 1 hr in the same direction.
(a) what Is the man’s average speed for the whole journey?
(b) what Is the man’s average velocity for the whole journey
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Answer:
Average Speed= Total Distance/Total Time Taken
So,
Average Speed=(7+2)/(2+1)
=9/3
=3 km/hr
Average Velocity= Displacement/ Total Time Taken
Vav=9/3 (Displacement=9, as the man is moving in same direction)
Vav=3 km/hr
Explanation:
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