Connecting Students in 221 Countries

Search *

Video Lectures

Video Lecture Advance Illustration My Sequence My Bookmark

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

Basic Tools

Mechanics

Heat & Thermodynamics

Oscillation & Waves

Properties of Matter

Gravitation

Electrostatics

Electric Current & Circuits

Magnetic Effects

Optics

Modern Physics

Semiconductors

Communication Systems

No Question is difficult if it is analyzed carefully .. After learning sequenced theories, Such questions are really boosting my confidence sir.. Thanks a million for such quality content respected sir!

3 years ago by

Post your answer here

sir, the force due to friction acts on every point on the elemental ring and not just on one point.....so shouldn't we take a complete integral of friction acting on every point on the ring rather than that on one point only.?

6 years ago by Rishabh Chaurasia

Post your answer here

sir what about the torque due to the rotation of disk?

9 years ago by gaurav sahu

Post your answer here

If w final(omega is zero) then w initial = -alpha*t which gives t as negative..but this can happen...please explain..

9 years ago by Ritwik Jha

Ans 1 ->

i mean w final(omega) is zero..

9 years ago by Ritwik Jha

Ans 2 ->

here we have taken acceleration to be retardation which is a=(-ve)value used so time will be +ve

9 years ago by Sangita Kumari

Post your answer here

sir why did we use integration while calculating friction ,as friction is independent of area in contact morever we didnt use integration to calculate friction in translational motion

10 years ago by vishal

Ans 1 ->

Here we are not integrating friction... we have to calculate the torque due to friction which is acting at different radii so to calculate the total torque of friction we need to integrate the torque due to friction at an elemental ring and we integrate as at different elements of disc torque due to friction is different..

10 years ago by Physics Galaxy

Ans 2 ->

thanks a lot sir I have got your point

10 years ago by vishal

Log In with by just Once Click -

OR

OR
Log In with your mail ID -
E-Mail:	Enter correct email id. Enter your email id.
Password:	Enter your password.

	Forgot Password ? Click here New User ? Click here

OR

OR

Video Lectures

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

Share this with your friends :

Post your question related to above video lecture

Post your answer here

Post your answer here

Post your answer here

Post your answer here

Post your answer here