1
1 mark
The blade of a lawnmower rotates at a speed of 50 revolutions per second.
Which of the following is the angular speed of the blade in rads s−1?
7.96
15.9
157
314
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Exam code: 9PH0
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Circular Motion
The blade of a lawnmower rotates at a speed of 50 revolutions per second.
Which of the following is the angular speed of the blade in rads s−1?
7.96
15.9
157
314
Choose your answer
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Two points, P and Q, lie on a disc that rotates about a fixed axis. Point P is three times as far from the axis as point Q. The linear speed of point Q is .
Which of the following gives the linear speed of point P?
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