ef152-rec-1-2

# ef152-rec-1-2 - EF 152 Physics for Engineers Spring 2009...

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EF 152 – Physics for Engineers Spring, 2009 Recitation 1.2 Rotational Motion Task 1. Concept questions, the favorite from EF 151. Test out your clicker to make sure it is working with this first question. Concept questions are: a. awesome b. amazing c. awe-inspiring d. astounding Bonnie sits on the outer rim of a merry-go-round, and Klyde sits midway between the center and the rim. The merry-go-round makes one complete revolution every two seconds. 1. Klyde’s angular velocity is: a. same as Bonnie’s b. twice Bonnie’s c. half of Bonnie’s d. 1/4 of Bonnie’s e. four times Bonnie’s 2. Who has the larger linear (tangential) velocity? 3. Who has the larger normal acceleration? Suppose that the speedometer of Cheryl’s truck is set to read the linear speed of the truck, but uses a device that actually measures the angular speed of the tires.

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