# A car leaves an airport going 84 km/hr. 5 hours later, an airplane going 705 km/hr departs. How do you find the distance when the airplane will catch up with the car?

##### 1 Answer

Sep 21, 2015

I found

#### Explanation:

Call the distance you need

In general velocity will be

if

so for the car and airplane

The cat will travel

using this into the expression for, say, the car we get:

The only thing is that you are given velocities without considering that the car and the airplane has to start from zero and accelerate...the passengers probably would not survive going from zero to 705km/hr instantly!