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You are driving home from school steadily at 95 km/h for 180km. It then begins to rain and you slow to 65 km/h. You arrive home after driving 4.5 h. (a) How far is your hometown from school? (b) What was your average speed?

Respuesta :

Answer:

the total trajectory length is 349.39 km

Explanation:

for the first trajectory

Time taken in first trajectory = First trajectory length /velocity  = 180 km/95 km/h = 1.894 hours

therefore since the total time is 4.5 hours

Time taken in second trajectory =  Second trajectory length /velocity  

4.5 hours- 1.894 hours = Second trajectory length / 65 km/h

Second trajectory length = 169.39 km

therefore the total trajectory length is 180 km + 169.39 km = 349.39 km

Explanation:

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