A man walks on a straight road from his home to a market 5 kms away with a speed of 10km/h. Finding the market closed, he instantly turns back, walks back with 5km/h Find his average Velocity Average speed over the whole journey.
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Answer:
Av. velocity =total distance
[v] .....................
total time
T1=5/10=1/2 hr
T2=5/5=1hr
therefore,
v=5+5/[1/2+1]=10*2/3
={20/3}km/hr
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