Ban. P QB RM 16

A square plate of mass M and edge length L is shown in figure. Find the moment of inertia of the plate about the axis in the plane of the plate passing through one of the vertex making an angle of 15° from the horizontal.

11 Answers

62
Lokesh Verma ·

Hint:

Use symmetry and parallel Axis theorem!

62
Lokesh Verma ·

Or in other words,

think symmetry,

then Perpendicular axis theorem

Then Parallel axis theorem!

11
Anirudh Narayanan ·

No iitimcoming, u're half awake [3]

1
skygirl ·

am getting : mL^2 /12 + 3mL^2/8

1
skygirl ·

21
tapanmast Vora ·

SKY : BINGO!!!!!!

ME TOO DID IT DA SAME WAY [1]

1
skygirl ·

will say a story :

once in our physics tution... Sir (Sukumar Chandra ... the greatest physicist i had ever met) gave us a problem.. all 12 of us got diff answers.. but suddenly as i told my ans .. one of my friends jumped ..
WOW ME TOO GOT THE SAME !! THAT MEANS WE ARE CORRECT!!....
and without even thinking twice about our method or anything else he commented : oh amrita! great ppl think alike :P ....
Sir without looking at our copies ... gave us a cold look :P ,,,
(in the mean time i got frightened :P :P) ... then he smiled ans said:
GREAT FOOLS ALSO THINK ALIKE!! //

now there is no hard feelings tapan ...

but u know, whenevr someone else tells that wow!u got this.. i too got the same...
then always that sweet incident comes to my mind...

oh! forgot to tell.... both of us were correct ... and we were ecstatic! :P

21
tapanmast Vora ·

:P LOL [4]

U R surely not a fool so if v fall in da same category, I dont mind!!

1
skygirl ·

[1] tx. [3]

1
skygirl ·

waise, mujhe pata nahi tha .. ajkal stories ke liye bhi pink hai [3] [3] [3]

then i will back-up each post with a story....

i always have too many stories to tell [3]

1
MATRIX ·

ya then tell diddddiiii(sky).....[3][3][3]..........

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