A record player goes from stopped to rotating at 45 revolutions per minute (rpm) in 4.0seconds....

Question

Question

A record player goes from stopped to rotating at 45 revolutions per minute (rpm) in 4.0seconds. What is its angular acceleration?

A.3pi/4 rad/s^2

B.3pi/2rad/s^2

C.3pi/8 rad/s^2

D.11.25pi rad/s^2

Answer is C, but please show reasoning.

science physics

Answer 1

Answer #1

Answer 2

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