158-M11 Intro rev 2

# 158-M11 Intro rev 2 - M11 Rotational Dynamics PHY 158 In...

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M11 Rotational Dynamics PHY 158 In this lab we will complete the following tasks: erify Newton’s law for rotational dynamics a. Verify Newton’s law for rotational dynamics τ = I α b. Measure the rotational inertia of a hollow cylinder c. Measure the rotational inertia of a rod (page 1)

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The equipment used in this lab is shown in the figure. A steel disc of mass M and dius ins with negligible friction on linder r ring radius R spins with negligible friction on a cushion of air about a vertical axis. A mass holder of total mass m T is connected ia a string to a pulley placed on top of pulley Steel disc cylinder string M via a string to a pulley placed on top of the disc. The string passes over a cylinder of radius r and negligible mass. The mass m starts from rest at point A and moves A m T R axis t T with constant acceleration a to point B on the floor after a time t . The mass m T exerts a torque τ approximately given by h B a Stopwatch the equation: τ≈ m T gr (eq.1) Under the action of τ the steel disc rotates with constant angular acceleration α .
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## This note was uploaded on 03/26/2010 for the course PHY 158 taught by Professor Staff during the Spring '08 term at SUNY Buffalo.

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158-M11 Intro rev 2 - M11 Rotational Dynamics PHY 158 In...

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