# If a car travels 200 km at an average velocity of 40 km/hr, and a second car starting 1.0 hour later arrives at the 200 km destination at the same time, what is the average speed of the second car?

##### 1 Answer

Mar 27, 2016

The average speed of the second car is

#### Explanation:

For the first car we have,

Distance: 200 km

Average speed: 40 km/hr

Start Time: Let's say 12:00 pm, noon

Stop Time:

For the second car, we have,

Distance: 200 km (same distance)

Average speed: ? This is what we want to know

Start Time: 1:00 pm

Stop Time: 5:00 pm (same time)

Because

200 km =