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PhysicsTechMemo5 - To James Maxin From Jeremy Kaiser...

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To: James Maxin From: Jeremy Kaiser; Student Date: Wednesday April 9, 2008 Subject: Technical Memo for Lab 5 experiment 1 Introduction: The purpose of this memo is to analyze the forces on a rotating “mock” satellite when it spins at a constant angular speed. Our group captured a video of a constant rotating propeller, and found the linear speed of a point at 5 separate distances from the axis of rotation. Background: The propeller is placed on a level and seemingly frictionless axis. There were 5 videos taken and each initial velocity was recorded via logger pro. The distances from the center was: .045m , .085m , .100m , .171m , and .216m . Body: Upon completing the lab, we were attained this data from the videos: Distances from the axis Tangential Velocity in m/s before one rotation Tangential Velocity in m/s after one rotation .045 .153 .144 .085 .292 .239 .100 .343 .317 .171 .587 .523 .216 .741 .723 This velocity recorded is the tangential velocity , therefore we had to calculate the angular velocity using v=rΩ therefore we found the angular velocity to be 3.43 radians per second.
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