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A ventilation fan with a moment of inertia of 1.7 kg-m? has a net torque of 3.8 N-m applied to it: If it starts from rest; what angular momentum will it have 2.3 $ ...

Question

A ventilation fan with a moment of inertia of 1.7 kg-m? has a net torque of 3.8 N-m applied to it: If it starts from rest; what angular momentum will it have 2.3 $ later?

A ventilation fan with a moment of inertia of 1.7 kg-m? has a net torque of 3.8 N-m applied to it: If it starts from rest; what angular momentum will it have 2.3 $ later?



Answers

A ceiling fan is turned on and a net torque of 1.8 $\mathrm{N} \cdot \mathrm{m}$ is applied to the blades. The blades have a total moment of inertia of 0.22 $\mathrm{kg} \cdot \mathrm{m}^{2}$ . What is the angular acceleration of the blades?

Problem. We won. We help Go find moment off Inertia of it Sooty was emission angler lost E is zero and after some time there's angler blows d becomes three point no snakes radio once again. And, uh, the time required to get this funnel most is 31 mind and siguen ms No and darkies given is a little blind one. Why? Newton reader? And we have to find a moment of nationalities. I you go toe close. Jen, look So I is equal toe d'argo Lord acceleration the here angler exploration is unknown. We find Anglo expression boss from equations of Get the Medics final Angler Lusty is equal to initial Angler Rusty plus angler registration monthly place Right time. So the angler exploration is you on my when we get Linus When I got not doing my time. And what do you know he was here t mind Double six Oh, minus zero over 31. Mind too. This equals dough. They include exhibition off wine The 11 Why villian cars again? It's where so uh is because Mom went off in the Shays dark hour Angler exploration and the dark is zero point one dual life. Oh, new Demi did and do right by angler exploration. And that is going develop one. Why radiant First candy square and the D. C equals dough Moment of you know this year. Oh, one point, Zittel. Mine. Casey Meat. That is there. So this is the moment of inertia we get. Thank you.

Hi, friends. This is a problem based on concept of angular acceleration, which is defined as rate of change off and global city. It's time and start acting on the rotating body, defined as product off moment of inertia into angular acceleration. Here it is, given an initial angular velocity of rotating body is 3.66 radiant per second. Mhm Todd applied all it is 0.125 seconds and it is brought to rest in time and travelogues 31.8 seconds. We are supposed to be our supposed to calculate moment of energy. So first we will calculate angular acceleration by using omega is part two mega not plus at party final and global as it is. Zero In each of these 3.66 angular acceleration, we are finding it is broad and rest in 31.8 seconds. So angular acceleration. You will get minus 1115 radiant per second squared and talk will be high into the air force. So moment of inertia you will get Yeah, and will it? Sorry. Tor is given 0.125 minutes meters 0.115 So it is to be equal to one point. General nine. He gave me two square. That's all. Thanks for watching it

Course, intimidate people. The total mass is equal to for in tow zero point the flight J D the Len is it quite so. Zero point six meat. That's time is he will do 4.35 seconds. The final angular velocity is equal to one point it revolutions per second or it is also equal to 11.31 ready in. But a second now the dog is given is no equator. I, uh This is a quote to you Went off inertia offered raw around about its and is and Ellie Square by three in blue final angular velocity. My net zero upon time. Such shooting, the values for in new 0.35 Indo 0.6 is squared in 11.31 They were aided by three into four point he five. Solving this, we will get the talk. Vito Point for the 68 Newton meters

Hello, everyone. This is problem. 48 from chapter 10 tells us an electric fan spinning with a given angular speed has given kinetic energy. What is the moment of inertia of the fan? All right, So the important equation relating if we wantto relate kinetic energy and moment of inertia and angular speed is T equals 1/2 client mega squared or amusing T for connect energy. So this equation ah, may look new and scary in this chapter. However, this is very similar to the linear kinetic energy equation. Ah, kinetic energy is equal to 1/2 m v squared were. Now, instead of mass, you're using moment of inertia instead of V or you think Omega. Okay, so we're asked to find the moment of inertia here. So if we rearrange slightly, we find that the moment of inertia is just to go to two times the kinetic energy divide by Omega Squared and, um, notice that both the angler speed and the Connect energy actually given in the problem. So using the values that were given 4.6 of jewels for the kinetic energy and 13 radiance per second for the English speed But those in and we just get 0.54 kilogram meter squared


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