How long is the total trip and what is the average velocity for the total trip in the following case:A bus travels 280 km south along a straight path with an average velocity of 88 km/h to the...

How long is the total trip and what is the average velocity for the total trip in the following case:

A bus travels 280 km south along a straight path with an average velocity of 88 km/h to the south. The bus stops for 24 minutes. Then it travels 210 km south with an average velocity of 75 km/h  to the south.

Expert Answers
justaguide eNotes educator| Certified Educator

The bus travels 280 km south along a straight path with an average velocity of 88 km/h to the south. It stops for 24 minutes and then resumes its journey to the south traveling 210 km at an average velocity of 75 km/h.

The total distance traveled by the bus is 280 + 210 = 490 km to the south.

The time taken by the bus to travel 280 km is `280/88 + 210/75 + 24/60 = 351/55` hours.

The average velocity of the bus is `490/(351/55) = (490*55)/351 ~~ 76.78` km/hr.

The total distance traveled by the bus is 490 km and the average velocity of the bus is 78.78 km/h.