the odomoter of a car reads 57321.0 km when the clock shows the time 8:30 .What is the distance moved by the car , if at 8:50 am , the odometer reading has changed to 57336.0 km? calculate the speed of the car in km/min during this time express the speed in km/h also
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Answer:
initial reading- 57321.0 km
after moving some distance- 57336.0 km
distance travelled = initial - final reading
= 57321-57336 km
= 15 km
starting time= 8:30 am
ending= 8:50 am
time taken = 20 minutes (subtract starting time and ending time)
= 1/3 hr
in km/min
speed = dist/time
= 15/20 km/min = 0.75 km/min
in km/h
speed = distance/time
15/(1/3) km/h = 45 km/h. (convert 20 min to hours)
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