A washing machine needs 17.9 s to speed up from rest to top speed of 5 rotation for every 2.78 s. If the damp cloths inside are 7.13 cm from the center, what is it's radial acceleration at top speed?
2 answers
acceleration=wf^2/r=(2PI*5/2.78)^2/.0713
omega top = 5 * 2 pi radians/2.78 s
= 11.3 radians/s
omega = alpha t
11.3 = alpha (17.9)
alpha = .631 radians/s^2
but is you want linear radial acceleration only that is
Ac = v^2/r =omega^2 r
= 11.3^2 * .0713 = 9.10 m/s^2
(close to 1 g :)
= 11.3 radians/s
omega = alpha t
11.3 = alpha (17.9)
alpha = .631 radians/s^2
but is you want linear radial acceleration only that is
Ac = v^2/r =omega^2 r
= 11.3^2 * .0713 = 9.10 m/s^2
(close to 1 g :)
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