   Chapter 7.1, Problem 7.2QQ

Chapter
Section
Textbook Problem

Suppose the change in angular position for each of the pairs of values in Quick Quiz 7.1 occurred in 1 s. Which choice represents the lowest average angular velocity?

To determine
The lowest average angular velocity.

Explanation

Given info: The time taken for the displacement is 1s .

Explanation: The average angular velocity is given by,

ω=ΔθΔt

• Δθ is the angular displacement
• Δt is the time interval

The time interval is same for all cases, hence the case having lowest angular displacement will have the lowest angular velocity.

For option (a) Initial angular position is 3rad . Final angular position is 6rad

Angular displacement in option (a) is,

For option (b) Initial angular position is 1rad

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