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Q1 A car travels first 30 km with a uniform speed of 60kmh and the next 30 km with auniform speed of 40 km h . Calculate (i) the total time of journey,(ü) the average speed of car.[Ans(i) 75 min(ii) 48 km/h)pls.............answer ​

Answer»

D1 =30 KM

v1=60km/h

d2=30km

v2=40 km /h

t=(d1/v1)+(d2/v2)

t=(30/60)+(30/40)

t=30/24

t=30*60/24

t=75



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