Question

A car cover first half of the total distance with speed 36 km /h and second half with speed of 54 km /h per hour find the average speed of car

Answer 1

36 km/hr=10m/s

54km/hr=15m/s

For equal interval of distance

1/Vavg=1/V1+1/V2

1/Vavg=1/10+1/15

Vavg=6m/s