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EchoTheCat

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## Homework Statement

There are two blocks, m1 and m2, that are hanging from a rope which passes over a pulley.

The mass of the pulley is 0.15 kg.

The radius of the pulley is 0.055 m.

The mass of m1 is 0.165 kg.

The mass of m2 is 0.18 kg.

The linear acceleration is m1 is 0.3504 m/s/s downward, and the linear acceleration of m2 is 0.3504 m/s/s upward.

What is the magnitude of the angular acceleration of the pulley?

## Homework Equations

The tension on mass 1 is m1g-m1a.

The tension on mass 2 is m2a+m2g.

T1-T2 = 1/2 mp *

*a **r.

## The Attempt at a Solution

m1g-m1a - (m2a+m2g) = 1/2 * mp *

*a** r

0.165 (9.81 - 0.3504) - 0.18(0.3505+9.81) = 1/2 * 0.15 *

*a** 0.055

a = 64.98 rad/s/s