A person travels half of the distance at the speed of 60 km/h and the remaining half at the speed of 90 km/h. what is his average speed?
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a car covers the first half of the distance between two places at a speed of
40km/hr and second half at 60 km/hr . calculate the average speed of the car
:
let a = average speed for the trip
let assume total distance = 2d
d = half the distance
:
write a time equation, time = dist/speed
d/60 + d/90 = 2d/a
5d/180 = 2d/a
a = 180(2/5)
a = 72 km/hr is average velocity
i hope it will help you
regards
40km/hr and second half at 60 km/hr . calculate the average speed of the car
:
let a = average speed for the trip
let assume total distance = 2d
d = half the distance
:
write a time equation, time = dist/speed
d/60 + d/90 = 2d/a
5d/180 = 2d/a
a = 180(2/5)
a = 72 km/hr is average velocity
i hope it will help you
regards
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