...Rotation

This assignment is due by 9 AM, Monday Oct 16.

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The following three questions refer to the material you were to read in preparation to the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle.

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1.

The wheel in the picture is rolling without slipping. If the center of the wheel travels 1.5 meters, through what distance does the red point on the rim of the wheel travel? Does the answer depend on the fact that the radius of the wheel is 35 cm?



2.

The small wheel in the picture is rotating at 50 rpm. What is the angular speed of the large wheel if its radius is twice that of the small wheel.




3.

A grinding wheel has a moment of inertia of 15 kgm2 and is rotating at 1000 rpm. Its rotational kinetic energy is

8.2 x104 J

2.1 x 103 J

2.96 x 108 J

none of above





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