- #1

Alexanddros81

- 177

- 4

**This is problem 12.81 from Pytels Dynamics 2nd edition**

1. Homework Statement

1. Homework Statement

A train traveling at 20m/s is brought to an emergency stop. During braking,

the acceleration is a=-(7/4)+(t/16) m/s^2, where t is the time in seconds measured

from when the brakes were applied. (a) Integrate the acceleration from t=0 to

t=16s using Euler's method with Δt=2s. (b) Use the results of the integration to

determine the stopping distance of the train and compare you answer with 138.7m,

the value found analytically.

## Homework Equations

## The Attempt at a Solution

[/B]

According to the results of the Euler method above the stopping distance is between 150.5-152 m

That is way above 138.7m. Am I correct?