Ch7_TestBank

Ch7_TestBank - Chapter 7 Rotational Motion and the Law of...

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Chapter 7, Rotational Motion and the Law of Gravity 89 11. Starting from rest, a wheel undergoes constant angular acceleration for a period of time T . At what time after the start of rotation does the wheel reach an angular speed equal to its average angular speed for this interval? a. 0.25 T b. 0.50 T c. 0.67 T d. 0.71 T 12. Starting from rest, a wheel undergoes constant angular acceleration for a period of time T . At which of the following times does the average angular acceleration equal the instantaneous angular acceleration? a. 0.50 T

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Ch7_TestBank - Chapter 7 Rotational Motion and the Law of...

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