Calculating Rotation and Movement of a Rotating Fan at 0.17m Radius

  • Thread starter Thread starter tjcreamer9
  • Start date Start date
AI Thread Summary
A rotating fan with a radius of 0.17 m completes 1200 revolutions per minute. The distance traveled by a point on the tip of the blade in one revolution can be calculated using the formula for the circumference of a circle. The speed of the point is determined by multiplying the distance per revolution by the number of revolutions per second. The acceleration can be found using the formula for centripetal acceleration, while the period of the motion is the inverse of the frequency. Clarification is sought regarding the calculation of the period, as the user consistently arrives at 0.057 seconds.
tjcreamer9
Messages
6
Reaction score
0
A rotating fan completes 1200 revolutions every minute. Consider a point on the tip of a blade, at a radius of 0.17 m.
(a) Through what distance does the point move in one revolution?
m
(b) What is the speed of the point?
m/s
(c) What is the magnitude of its acceleration?
m/s2
(d) What is the period of the motion?
s
 
Physics news on Phys.org
i have converted my units and still don't understand why i keep coming up wit .057 for part d. i need some guidence
 
tjcreamer9 said:
i have converted my units and still don't understand why i keep coming up wit .057 for part d. i need some guidence

Show us your calculation so we can see what you're doing.
 

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Similar threads

Is My Calculation of Centripetal Acceleration and Tangential Velocity Correct?
Replies
12
Views
1K
Perfectly inelastic collision between Projectile and a hinged disk
Replies
26
Views
1K
What is the Linear Distance and Angular Velocity of a Rotating Potter's Wheel?
Replies
7
Views
2K
Calculate center of rotation of monocopter
Replies
17
Views
2K
Calculate Intensity of Braking Moment - Rotational Movement Flywheel
Replies
4
Views
1K
Foucault Pendulum at the North Pole
Replies
9
Views
2K
What is the speed of the cart 3.5 s after the fan is on?
Replies
9
Views
3K
Rotational Momentum: Calculating Angular Speed After Cockroach Stops
Replies
2
Views
2K
How to calculate angular speed?
Replies
7
Views
3K
Calculating Clicks: Spoke Card Oscillations and Rotational Motion
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top