Car intersection speed

Two cars started from the right-angled intersection of two roads. The first at a speed of 80 km/h and the second at a speed of 60 km/h. How fast are they moving away from each other?

Final Answer:

v =  100 km/h

Step-by-step explanation:

v1=80 km/h v2=60 km/h  s=s12+s22  (v t)2=(v1 t)2+(v2 t)2  v2 = v12+v22  v=v12+v22=802+602=100 km/h



Help us improve the example. If you find a mistake, let us know. Thank you!







Tips for related online calculators

You need to know the following knowledge to solve this word math problem:

arithmeticplanimetricsUnits of physical quantitiesthemes, topicsGrade of the word problem

 
We encourage you to watch this tutorial video on this math problem: video1   video2

Related math problems and questions: