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3 years ago

A washing machine’s two spin cycles are 328 rev/min and 542 rev/min. The diameter of the drum is 0.43 m.

Physics

1 answer:

masya89 [10]3 years ago

4 0

Diameter=0.43m
Radius=0.21m

$\\ \tt\rightarrowtail \dfrac{a_1}{a_2}=\dfrac{(v1)^2r}{(v2)^2r}$

putting v=rw

$\\ \tt\rightarrowtail \dfrac{a_1}{a_2}=\dfrac{r^3\omega_1^2}{r^3\omega_2^2}$

Cancel r^3

$\\ \tt\rightarrowtail \dfrac{a_1}{a_2}=\dfrac{(328)^2}{(542)^2}$

$\\ \tt\rightarrowtail a_1:a_2=107584:293764$

$\\ \tt\rightarrowtail v_1:v_2=328:542=164:271$

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