- #1

MozAngeles

- 101

- 0

## Homework Statement

When a carpenter shuts off his circular saw, the 10.0-inch diameter blade slows from 4740 rpm to zero in 3.00 s.

A. What is the angular acceleration of the blade(rev/s^2)? GOT IT

B. What is the distance traveled by a point on the rim of the blade during the deceleration(ft)? GOT IT

C. What is the magnitude of the net displacement of a point on the rim of the blade during the deceleration(in)?

__NEED HELP__

## Homework Equations

[tex]\theta[/tex]=s/r

all of the angular kinematics equations

## The Attempt at a Solution

i solved part be with s=[tex]\theta[/tex]*r after i had found theta using the kinematics equation ([tex]\omega[/tex]^2=[tex]\omega[/tex]0^2+2[tex]\alpha[/tex]*[tex]\Delta[/tex][tex]\theta[/tex], solving for theta using the acceleration from part A.*IF you think part C is just the answer to part B in inches that's wrong, but I do not know what else to do*. PLease help.