- #1

Tyrannosaurus_

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## Homework Statement

On a North-South highway, a Car drives 80 km/h [N]. A SUV, that is north of the Car, is moving 70 km/h [South]. The car is to the south of the SUV. The two are separated by 20 km. Where are the two cars when they pass each other.

## Homework Equations

Both are in uniform motion so V = d/t -> d = v*t

## The Attempt at a Solution

d

_{c}+ d

_{suv}= 20 km <--- this is my question... this part okay?

v

_{c}*t + v

_{suv}*t = 20 km

t*(v

_{c}+ v

_{suv}) = 20 km

t*(160 km/h) = 20 km

t = 20 km / 160 km/h

t = 1/8 h

Next

d

_{c}= v

_{c}*t

d

_{c}= 90 km/h* (1/8) h

d

_{c}= 90/8 km [N]

So, the two meet at a place 90/8 km to the north of where the car started the problem from