A Wheel makes 32 revolutions/min. Find in radians the angle through which the wheel turns in 3 seconds. How long will it take to turn 25 degree
2007-07-25 17:04:53 · 4 answers · asked by Kesari 1 in Science & Mathematics ➔ Mathematics
32(2pi)/60 = x/3 ==
64pi/60 = x/3 ==
16pi/15 = x/3 ==
48pi/15 = x =
16pi/5 radians; (approx. 10.05 radians)
32(360)/60 = 25/t ==
32(6) = 25/t ==
192t = 25 ==
t = 25/192 seconds (approx 0.1302 seconds)
Both of these are just simple proportions.
2007-07-25 17:18:32 · answer #1 · answered by Gary H 6 · 0⤊ 0⤋
There are 2 x PI radians in one revolution. The rest is just multiplication and division. I hope you can get there from here, but I did my homework problems like this 50 years ago.
2007-07-26 00:10:10 · answer #2 · answered by birchardvilleobservatory 7 · 0⤊ 0⤋
32 revolutions/min, 1 rev will take 60s/32rev = 1.875 sec
1 rev = 1.875sec = 6.283 rad
Find in radians the angle through which the wheel turns in 3 seconds.
1.875sec/3.00sec = 6.283 rad/X rad
How long will it take to turn 25 degree
25' = 0.4363 rad
1.875sec/X sec = 6.283 rad/0.4363 rad
2007-07-26 00:17:04 · answer #3 · answered by Anonymous · 0⤊ 0⤋
sure
2007-07-26 00:08:23 · answer #4 · answered by sports_fan16 1 · 0⤊ 0⤋