A wheel rotates about a fixed axis with a constant angular acceleration of 4.0 rad/s2. The diameter of the wheel is 40 cm. What is the linear speed of a point on the rim of this wheel at an instant when that point has a total linear acceleration with a magnitude of 1.2 m/s2?
A)39 cm/s
B)42 cm/s
C)45 cm/s
D)35 cm/s
E)53 cm/s

Question

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The Answer of A wheel rotates about a fixed axis with a constant angular acceleration of 4.0 rad/s2. The diameter of the wheel is 40 cm. What is the linear speed of a point on the rim of this wheel at an instant when that point has a total linear acceleration with a magnitude of 1.2 m/s2?
A)39 cm/s
B)42 cm/s
C)45 cm/s
D)35 cm/s
E)53 cm/s

A Wheel Rotates About a Fixed Axis with a Constant