Rotational Velocity & Acceleration Video Lessons

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Problem: A record rotates on a turntable at 33 rpm.Part AWhat is the angular speed in rad/s?Express your answer using two significant figures.ω =rad/sPart BWhat is the period of the motion?Express your answer to two significant figures and include the appropriate units.T =

FREE Expert Solution

A)

Angular speed,

ω=2πN

N = 33 rev / min (1 min / 60 s) = 33/60 rev /s

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Problem Details

A record rotates on a turntable at 33 rpm.

Part A

What is the angular speed in rad/s?

Express your answer using two significant figures.

ω =

rad/s

Part B

What is the period of the motion?

Express your answer to two significant figures and include the appropriate units.

T =

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