a car at 54 km\h is 60 km behind a truck traveling at 10 m\s. how long will it take the car to reach the truck?

Answer 1

Considering that the speeds are in two different units, we have to convert. The conversion rate from km/h to m/s is 1 to 0.277778.

So the car's speed is 15 m/s.

The distance between the car and the truck is 60000 m.

This problem can be solved using a system of equations. Such as:

y = 15x - 60000 //The car.
y = 10x //The truck.

"x" is the time in seconds.

Using a graphing calculator and finding the point at which the two lines intersect, "x" is equal to 12000 seconds or 200 minutes or roughly 3 * (1/3) hours.