A grinding wheel of radius makes complete revolutions while sharpening a tool.

PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics

Problem

A grinding wheel of radius 0.15 m0.15\,\text{m} makes 2.52.5 complete revolutions while sharpening a tool. (i) Express the total angular displacement of the wheel in radians. (ii) Determine the length of the path traced by a point on the outer edge of the wheel during these revolutions.

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