A 0150-M-Radius Grinding Wheel,starting at Rest,develops an Angular Speed of 12

question 95

Multiple Choice

A 0.150-m-radius grinding wheel,starting at rest,develops an angular speed of 12.0 rad/s in a time interval of 4.00 s.What is the centripetal acceleration of a point 0.100 m from the center when the wheel is moving at an angular speed of 12.0 rad/s?

• A)0.450 m/s²
• B)7.20 m/s²
• C)14.4 m/s²
• D)28.8 m/s²

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