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## Homework Statement

A uniform 3.8-kg cylinder can rotate about an axis through its center at O. The forces applied are: F1 = 4.6 N, F2 = 6.2 N, F3 = 8.0 N, and F4 = 3.1 N. Also, R1 = 10.7 cm and R3 = 5.8 cm. Find the magnitude and direction (+: counterclockwise; -: clockwise) of the angular acceleration of the cylinder.

F1 = 4.6N

F2 = 6.2N

F3 = 8.0N

F4 = 3.1N

R1 = .107M

R2 = .107M

R3 = .058M

R4 = .107M

I = .2033

M= 3.8kg

## Homework Equations

T = F * R

ang accel = T/I

I= 1/2MR^2

## The Attempt at a Solution

*0 = omega since i don't have key

T=Frsin0

F1= 4.6*.107sin90 = .4922

F2= 6.2*.107sin90 = -.6634

F3= 8.0*.058sin90 = -.464

F4= 0

Fnet = -.6352

-.6352/.2033= -3.124 rad/s^2