Answered

Welcome to Westonci.ca, your one-stop destination for finding answers to all your questions. Join our expert community now! Get immediate and reliable answers to your questions from a community of experienced experts on our platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

A light-rail train going from one station to the next on a straight section of track accelerates from rest at 1.1 m/s2 for 20 s. It then proceeds at constant speed for 1100 m before slowing down at 2.2 m/s2 until it stops at the station.
How much time does it take the train to go between the stations?
Express your answer using two significant figures.

Sagot :

AL2006

-- Accelerating for 20 seconds takes it 20 seconds.
During that time, it reaches aspeed of  (1.1 x 20) = 22m/s .

-- Moving at 22 m/s, it takes  (1100 / 22) = 50 seconds to cover 1100 m.

-- To go from 22 m/s to a stop takes  (22 / 2.2) = 10 seconds .

Total time = (20 + 50 + 10) = 80 seconds.


The slightly-more-interesting question concerning the same train is:
What is the total distance between the two stations ?


Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Thank you for choosing Westonci.ca as your information source. We look forward to your next visit.