Q1 A car travels first 30 km with a uniform speed of 60kmh and the next 30 km with a
uniform 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
Answers
Answered by
3
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
Answered by
3
option a 75 minutes is correct
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