- #1

lauriecherie

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## Homework Statement

A muon (an elementary particle) enters a region with a speed of 4.20 106 m/s and then is slowed at the rate of 1.10 1014 m/s2.

(a) How far does the muon take to stop?

________ m

## Homework Equations

x(t)= initial position + final velocity * time

v(t)= (acceleration * time) + initial velocity

x(t)= .5 * (acceleration * (time^2)) + (initial velocity * time) + inital position

x= initial position * (average velocity * time)

average velocity= (final velocity - initial velocity) / (2)

(final velocity^2) - (initial velocity^2) = 2 * acceleration * change in position

## The Attempt at a Solution

I came out with this as my seconds, t, .00000003818181818. Is this correct for the t value and where should I put this in at?