a car cover the first half of its distance between two places of 40km/hour and the second half of the distance the speed of 60km/hour . The average speed of the car over the whole journey is then
bharatdetha:
48kmph
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60+40/2
average speed=initial velocity +final velocity/2
100/2
50
average speed=initial velocity +final velocity/2
100/2
50
what's the answer
48kmph
I think so formula is for average velocity and question has asked about average speed
ya 48 is right answer
plz solve it
Plzz I want solution anyone can give it
let the distance be 2x then time for first half will be x/40 that for second half will be x/60 so average speed will be the speed that will help cover 2x distance in time t1 + t2 so 2x ÷ {(x/40)+(x/60)} so average speed is 48kmph
o thanks sir
no need for sir anyways hope it helps
ya it help alot
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