wo cars approach each other on a straight, level highway. Car A travels at 60 km/h and car B at 80 km/h. The driver of car B sees car A approaching at a speed of ________.
Two cars approach each other on a straight, level highway. Car A travels at 60 and car B at 80 . The driver of car B sees car A approaching at a speed of ________.
60 km/h
20 km/h
greater than 100 km/h
80 km/h
greater than 100 km/h
To find the speed at which car B sees car A approaching, we need to consider their relative velocity. The relative velocity is the difference between the velocities of the two cars.
In this case, car A is traveling at 60 km/h and car B is traveling at 80 km/h. Since they are approaching each other, we need to add their velocities together. Therefore, the relative velocity is 60 km/h + 80 km/h = 140 km/h.
So, the driver of car B sees car A approaching at a speed of 140 km/h.