Review_for_exam_1

# Review_for_exam_1 - Review for exam 1 ans C 1 If a wheel...

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Review for exam 1

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1. If a wheel turns with constant angular speed then: A. each point on its rim moves with constant velocity B. each point on its rim moves with constant acceleration C. the wheel turns through equal angles in equal times D. the angle through which the wheel turns in each second increases as time goes on E. the angle through which the wheel turns in each second decreases as time goes on ans: C
1. A flywheel is initially rotating at 20 rad/s and has a constant angular acceleration. After 9.0 s it has rotated through 450 rad. Its angular acceleration is: A. 3.3 rad/s B. 4.4 rad/s C. 5.6 rad/s D. 6.7 rad/s E. 11 rad/s ans: D

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A wheel starts from rest and has an angular acceleration of 4.0 rad/s 2 . When it has made 10 rev its angular velocity is: A. 16 rad/s B. 22 rad/s C. 32 rad/s D. 250 rad/s E. 500 rad/s ans: B
The figure shows a cylinder of radius 0.7m rotating about its axis at 10 rad/s. The speed of the point P is: A. 7.0m/s B. 14π rad/s C. 7.0π rad/s D. 0.70m/s E. none of these ans: A

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Review_for_exam_1 - Review for exam 1 ans C 1 If a wheel...

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