An Electrical Motor Spins at a Constant 2857

question 7

Multiple Choice

An electrical motor spins at a constant 2857.0 rpm.If the armature radius is 2.685 cm,what is the acceleration of the edge of the rotor?

• A)2403 m/s²
• B)844.4 m/s²
• C)241,100 m/s²
• D)84.40 m/s²

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