Rolling, rotation and torque are three terms very often associated with description of bodies undergoing motion that is both rotational and translation in nature.
The invention of wheel and the way it has been used to great effect in advancement of human race is of top order. While the wheel looks like a simple devise, it rolls with it some amazing Physics and that’s what we are going to study in this lesson.
Very basic thing to learn in this lesson is Rolling motion of a wheel.
So a wheel can rotate about its own axis like say this wheel stuck in snow with no forward movement or it could have linear motion also called translation motion only; that is this wheel just flies across straight ahead with NO rotation at all. Well this would be a rare situation but to understand the Physics of it, just imagine this situation as well. And what you would observe is that the center of mass moves in a straight line here and actually so do the other points on this wheel.
But if you have a wheel that combines rotation and linear motion, what you get is this, a wheel rolling ahead. And it assumes there is no slippage that is no breaks or bumps while it rolls. Here, the center of mass moves in a straight line or has linear motion and any other point on the wheel has rotatory motion.
PDF COPY OF LESSON, WRITE TO: [email protected]
MORE PROBLEMS & SOLUTION:
SUBSCRIBE TO “THE SCIENCE CUBE”: https://goo.gl/eKiXTp
CHANNEL TRAILER: https://youtu.be/pMGb9QQsDXE
ABOUT “THE SCIENCE CUBE”
Physics for class 11 and 12 is a significant step-up from class 10. Rushing into understanding topics like circular motion, electricity, “moment of inertia” etc. can leave a student disinterested in the subject over a period of time.
“The Science Cube” has come about from my experience of teaching over the years and how intricate topics like “integral calculus”, vectors, Newton’s laws of motion etc. are absorbed by young students.
I really hope that this channel can make the students appreciate the subject and help them ace their exams.
Who can use:
Class 11 and 12 students (CBSE, ICSE, NCERT)
IIT-JEE Preparation (JEE Main and JEE advanced)
Advanced Placement (AP Physics)
Subject SAT FOR ONLINE TUTORIALS BY ME: Write to [email protected]
Indicate which class you’re in and preferred time slot for tutorial