A truck enters a highway driving 60 mph. A car enters the highway at the same place 8 minutes later and drives 71 mph in the same direction. From the time the car enters the highway, how long will it take the car to pass the truck?

Relative speed is the net speed difference between two objects when they are on the same direction we subtract and when they are on different direction we add.

According to the given question A truck enters a highway driving 60 mph which is (60/60) miles per minute = 1 mile per minute.

The car is going at a speed of 71 miles hour or (71/60) mile per minute = 1.183 miles per minute.

∴ Their relative speed difference is ( 1.183 - 1 ) = 0.183 miles.

Given the car enters the highway 8 minutes later on that time the truck will cover the distance of (1×8) = 8 miles.

so, the time needed for the car to pass the truck is (8/0.183) minutes which is = 43.7 minutes or 44 minutes.

learn more about relative speed here :

https://brainly.com/question/11476119

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A truck enters a highway driving 60 mph. A car enters the highway at the same place 8 minutes later and drives 71 mph in the same direction. From the time the car enters the​ highway, how long will it take the car to pass the​ truck?

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A truck enters a highway driving 60 mph. A car enters the highway at the same place 8 minutes later and drives 71 mph in the same direction. From the time the car enters the highway, how long will it take the car to pass the truck?