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High School/JEE/NEET/IPhO Physics | 17-19 Yrs

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dFsintheta gets cancelled, and the forces should add and sum upto 2dFcostheta... Then the net force should be the integral of 2dFCostheta.. But in the video it shows dFcostheta ... then what about dFsintheta??

2 years ago by

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sir i did not understand anything

4 years ago by Anshul Goel

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very nice thank u

5 years ago by undefined

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sir in module no7 why did you take limit from -pi/4 to pi/4 and not 0 to pi/2

5 years ago by Shubham pathak

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plZ tell the method to take the appropriate limits

6 years ago by vijay hans

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Good

7 years ago by Ranjit Kumar lahiri

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fcos() is considered

7 years ago by vikas

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sir,why we have taken the limits as -pi/4 to pi/4

7 years ago by Rahul Jaiswal

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why have we taken the limits of integration from -45 to 45. cant we take them from 0 to 90. also is it necessary to take two components of force. isn't there a better method to solve it?

7 years ago by sans

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Why is d(m)=m/90*d(theeta) ?

7 years ago by Yukti Khosla

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Because the mass distribution is constant and is distributed over and angle pie/2 so the mass of elemental part is that .

7 years ago by GIRI NATH

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why did we have to take components of dF? why could we not intgate dF directly from 0 to pi/2??

8 years ago by sezal

Ans 1 ->

Because the Gravitational force acting on mass m is not constant throughout the quadrant(ring) because of its changing shape.(Or the gravitational force acting on the point is not in just one direction)

8 years ago by Akshunn Trivedi

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Video Lectures

High School/JEE/NEET/IPhO Physics | 17-19 Yrs

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