Follows 80693

A train travels at a speed of 50 km/h from city A. In 15 minutes, a second train follows him at 20 m/s. We are sitting on the first train. When will the second train catch up with the first?

Correct answer:

t2 =  34.0909 min

Step-by-step explanation:

v1=50 km/h m/s=50:3.6  m/s=13.88889 m/s t1=15 min s=15 60  s=900 s v2=20 m/s  s1=s2  v1 (t+t1)=v2 t 13.888888888889 (t+900)=20 t  6.111111t=12500  t=6.1111111112500=2045.45454545  t=11225002045.454545  t2=t min=t:60  min=2045.4545:60  min=34.091 min=34.0909 min



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
Do you want to convert velocity (speed) units?
Do you want to convert time units like minutes to seconds?

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

Units of physical quantities:

Themes, topics:

Grade of the word problem:


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

Related math problems and questions: