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March 6, 2015

March 6, 2015

Posted by **TLP** on Monday, May 5, 2014 at 3:53pm.

- Physics -
**bobpursley**, Monday, May 5, 2014 at 4:05pmrb/ra=tb/ta

rb/ra=2.5

so when wheel B is 75rpm, wheel A is 75/2.5= 30 rpm=30*2PI/60 rad/sec

time:

wf=alpha*t

t= wf/alpha=(30*2PI/60)/1.5 seconds

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