anonymous
  • anonymous
A train of length 180m approaches a tunnel of length 620m. How long will it take the train to pass completely through the tunnel at a speed of 54 km/h??
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Hiya, what are your own thoughts, so far?
anonymous
  • anonymous
180+620/54
anonymous
  • anonymous
Sounds good to me!

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
really???
anonymous
  • anonymous
The only issue would be your units. You're dividing metres by kilometers per hour, which doesn't sound like a good idea.
anonymous
  • anonymous
Are you doing this as part of maths, or physics?
anonymous
  • anonymous
maths
anonymous
  • anonymous
Great, you need to make sure with these kinds of questions is that your units are consistent. That means it's probably best to work with metres and seconds, so try converting the 54 kilometers per hour into metres per second.
anonymous
  • anonymous
how do you convert from 54 km/h to km/s
anonymous
  • anonymous
Not km/s, but m/s.
anonymous
  • anonymous
54km per hour means 54,000 metres per hour. How many seconds are there in an hour?
anonymous
  • anonymous
3600??
anonymous
  • anonymous
That's right.
anonymous
  • anonymous
So 54 km per hour is the same as 54,000 metres every 3,600 seconds.
anonymous
  • anonymous
Given that, can you work out how many metres every ONE second?
anonymous
  • anonymous
15??
anonymous
  • anonymous
That's right. So the train is travelling at 15 metres every second, that's 15 m/s. Now can you answer your original question?
anonymous
  • anonymous
Remember, as you rightly worked out before, the distance is 180+620=800m. Now that you know the speed as well as the distance, can you work out the time?
anonymous
  • anonymous
so that would be 800/15= 53.3
anonymous
  • anonymous
Sounds good!
anonymous
  • anonymous
HORAAAYYY
anonymous
  • anonymous
Congratulations!
anonymous
  • anonymous
Thank you so much, you will become a legend in no time
anonymous
  • anonymous
Thanks, glad to help!

Looking for something else?

Not the answer you are looking for? Search for more explanations.