Answered

Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Our Q&A platform offers a seamless experience for finding reliable answers from experts in various disciplines. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

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 ?


We hope our answers were helpful. Return anytime for more information and answers to any other questions you may have. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. We're here to help at Westonci.ca. Keep visiting for the best answers to your questions.