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**Train problem**

## Homework Statement

005 (part 1 of 1) 10 points

A 23-car train standing on the siding is started

in motion by the train's engine. There are

4 cm of slack between cars. The cars are 9 m

long. The engine is tightly connected to the

first car and moves at a constant speed of

22 cm/s.

How much time is required for the pulse to

travel the length of the train? Answer in units

of s.

## Homework Equations

i used the t = d/v

## The Attempt at a Solution

i calculated the distance of the train to be 9m * 23 cars + 4cm slack* 22 cars slack is between = Distance and then converted to cm

and used the Velocity as 22 cm/s

and solved for T

is this the correct approach

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