Share

## A bus travels 210 km south along a straight path with an average velocity of 85 km/h to the south. The bus stops for

Question

A bus travels 210 km south along a straight

path with an average velocity of 85 km/h to

the south. The bus stops for 25 min, then it

travels 230 km south with an average velocity

of 73 km/h to the south.

How long does the total trip last?

Answer in units of h.

in progress
0

Physics
4 months
2021-07-14T04:21:20+00:00
2021-07-14T04:21:20+00:00 1 Answers
9 views
0
## Answers ( )

Answer:6.04 hr

Explanation:The bus first travels a distance of 210 km south at an average velocity of 85 km/h. The time, t it takes to cover this distance is gotten from d = vt and t = d/v where d = distance and v = velocity.

So, t = 210 km/85 km/h = 2.47 h

The bus then stops for 25 min. We convert 25 min to hours by dividing by 60.

So 25 min = 25/60 hr = 5/12 h = 0.42 h

The bus then travels 230 km south at an average velocity of 73 km/h.

The time it takes to cover this distance is t = 230 km/73 km/h = 3.15 h

So, the total time for the trip is the sum of each individual time, which is 2.47 h + 0.42 h + 3.15 h = 6.04 hr

So, it takes 6.04 hr for the total trip