Question

Two trains, one traveling at 74.00 km/h and the other at 148.00 km/h, are headed toward one another along a straight, level track. When they are 963 m apart, each engineer sees the other's train and applies the brakes. The brakes decelerate each train at the rate of 1.0 m/s2. Is there a collision? (yes,no) A) What distance do the trains need to allow between them to stop at this acceleration? B) What acceleration do the two trains need to have to stop exactly in a distance of 963 m?

          Two trains, one traveling at 74.00 km/h and the other at 148.00
km/h, are headed toward one another along a straight, level track.
When they are 963 m apart, each engineer sees the other's train and
applies the brakes. The brakes decelerate each train at the rate of
1.0 m/s2. Is there a collision? (yes,no)
A) What distance do the trains need to allow between them to
stop at this acceleration?
B) What acceleration do the two trains need to have to stop
exactly in a distance of 963 m?

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Added by Logan W.

College Physics

Roger A. Freedman; Todd Ruskell; Philip… 2nd Edition

Chapter 2

Instant Answer

Solved by Expert Madhur L

07/27/2023

Step 1

Train 1: 74 km/h * (1000 m/km) * (1 h/3600 s) = 20.56 m/s Train 2: 148 km/h * (1000 m/km) * (1 h/3600 s) = 41.11 m/s Now, we can use the following equation to find the stopping distance for each train: stopping distance = (initial velocity^2) / (2 * Show more…

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Two trains, one traveling at 74.00 km/h and the other at 148.00 km/h, are headed toward one another along a straight, level track. When they are 963 m apart, each engineer sees the other's train and applies the brakes. The brakes decelerate each train at the rate of 1.0 m/s2. Is there a collision? (yes,no) A) What distance do the trains need to allow between them to stop at this acceleration? B) What acceleration do the two trains need to have to stop exactly in a distance of 963 m?

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