- #1
BunDa4Th
- 188
- 0
A wheel has a radius of 3.7 m. How far (path length) does a point on the circumference travel if the wheel is rotated through angles of 30°, 30 rad, and 30 rev, respectively?
30° m
30 rad m
30 rev m
I really need help on this. I don't even understand what I am suppose to do because I don't really understand the question and from what the teacher told us had nothing or in anyway how to solve an equation like this.
for the first equation i tried using this
deltaTheta = w_initial*t + 1/2alphat^2 but then i realize i don't know what alpha or t is. so that's when i thought w_initial is 0 so
deltaTheta = 1/2alpha*t^2 then i got this s = theta*r which will give me time in second but not sure.
any help would be great and very helpful to my studying.
30° m
30 rad m
30 rev m
I really need help on this. I don't even understand what I am suppose to do because I don't really understand the question and from what the teacher told us had nothing or in anyway how to solve an equation like this.
for the first equation i tried using this
deltaTheta = w_initial*t + 1/2alphat^2 but then i realize i don't know what alpha or t is. so that's when i thought w_initial is 0 so
deltaTheta = 1/2alpha*t^2 then i got this s = theta*r which will give me time in second but not sure.
any help would be great and very helpful to my studying.