Question

If a car covers 2/5th of total distance with v1 speed and 3/5th of the total distance with v2 speed then find the average speed of the car

Answer 1

this is answer..............

Answer 2

Answer:

Explanation:

The total distance (x)s= 2/5+3/5=s

Total time taken t= S/V (s=v*t)

t1=2/5s/v1=2s/5v1

t2=3s/5/v2=3s/5v2

Vavg=s/t

S/2s/5v1+3s/5v2

S/(s/5)(2/v1+3/v2)

5v1v2/3v1+2v2

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