Problem involving Moment of Inertia

AI Thread Summary
The discussion revolves around a student's struggle to understand the concept of moment of inertia after missing a class. Despite receiving a basic explanation from the instructor and studying the topic independently, the student finds a particular problem challenging. They seek assistance from the forum, emphasizing the need for guidance on the problem-solving process rather than just the answer. A member provides a helpful link to resources on the parallel axis theorem and encourages the student to start working on the problem. The student expresses gratitude for the support and intends to share the solution once it is confirmed.
bilals
Messages
9
Reaction score
0

Homework Statement


momentofinertia.jpg



Homework Equations



The Attempt at a Solution



I was absent when the physics instructor explained moment of inertia. I went to his office ,he explained to me the basics of this subject. When i asked him to help me in this question, he told me it is the most difficult question you can see in this course and you should solve it alone. Unfortunately, i could not understand how to solve it although he explained moment of inertia to me in addition,i studied it from the book. A friend of mine told me to seek help from this forum and here i am. This is worth marks and that's why i want you to help me... so please help me if possible, I am not looking for the answer, i need the way of sovling it..

Thanks in advance.
 
Physics news on Phys.org
Thank you denverdoc for the link..
I checked it ...and I'm trying to solve the question.
I hope it'll be solved... I will post the correct answer for this question as soon as they are published, for the others to benifit from it.
Thank you again for the link and the quick reply :approve: :approve:
 
NP, don't be afraid to ask for some help if you get stuck.
 
Answer:

1.jpg


2.jpg


3.jpg
 

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

Correct Use of the Parallel Axis Theorem for Moment of Inertia
Replies
2
Views
2K
What is the "r" in the moment of inertia?
Replies
13
Views
2K
Moment of inertia of a regular triangle
Replies
5
Views
2K
Moment of inertia project help- experiment 1: Bifiler Rod
Replies
2
Views
1K
Moment of inertia of a meter stick
Replies
9
Views
6K
Moment of Inertia of Solid Sphere - Proof
Replies
3
Views
5K
Moment of inertia for this assembly
Replies
2
Views
7K
Moment of inertia of a cross system
Replies
5
Views
2K
Moment of inertia of door rotation
Replies
1
Views
3K
Question about calculating moment of inertia.
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top