- #1

Zynoakib

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## Homework Statement

A car traveling on a flat (unbanked), circular track

accelerates uniformly from rest with a tangential acceleration

of 1.70 m/s2. The car makes it one-quarter of

the way around the circle before it skids off the track.

From these data, determine the coefficient of static

friction between the car and the track.

## Homework Equations

## The Attempt at a Solution

The distance traveled by the car:

2r(pi)(1/4) = 1.57r

s = 1.57r, v = ?, u = 0, a = 1.7

v^2 = u^2 + 2as

v = (5.338r)^(1/2)

ac = (v^2)/r = 5.338

F = ma = [PLAIN]https://upload.wikimedia.org/math/9/3/9/939974a71dda1b83cce5ab82a2d2cec1.pngn

5.3388m = 9.8[PLAIN]https://upload.wikimedia.org/math/9/3/9/939974a71dda1b83cce5ab82a2d2cec1.pngm

what's wrong? Thanks!

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