sally travels by car from one city to other.she drives for 30.0 min at 80,0 km/h,120 min at 150 km/h ,and 45.0 min at 40.0 km/h and she speeds 15.0 min eating lunch and buying gas.
a:determine the avrage speed for the trip.
b:determine the total distance traveled.
1
Expert's answer
2012-10-03T11:32:59-0400
b). The total distance traveled is
D = 80[km/h]*30[m] + 150[km/h]*120[m] + 40[km/h]*45[m] = & = 80[km/h]*0.5[h] + 150[km/h]*2[h] + 40[km/h]*0.75[h] = & = 370 km.
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