physics circular motion

Question

Marks: --/1
(1 point, penalty of 0.5)
A turntable is spun at 28 RPMs. Calculate the time for each rotation (i.e. calculate the period). Give your answer ...

Answer 1

RPM means revolutions per minute.

So the period, T, is the reciprocal or

 

T = 1/(28 revolution/minute) = 0.036 minutes/revolution

   = 2.1 seconds/revolution.