Solution to Problem 169 - Rolling Bowling Ball

Bowling Ball Pure Roll on an Accelerating Belt.

[motivation]

Excellent Lecture may God add you more years to continue teaching us

[SkyLightsUXOs]

Well, I am glad you had a nice vacation to the Netherlands...welcome home friend.

[priyeshsingh]

After a long time i come again to see our respected sir PROP. WELTER LEWIN, NAMASTE SIR 🙏

[Xenon]

Sir I am student of class 12th from India and I enjoy your lecture and i am very blessed to see your lecture on my device by just sitting at home and thanks for your beautiful videos ❤

[ankursrivastava]

Genius is 1 percent inspiration and 99 percent perspiration

[Pie_Hunter]

Professor you always make my day amazing and you are the greatest person also you are my inspiration i wants to be an astrophysicist

[Searchme]

JEE ADVANCED 2023 is on 5th JUNE
And I am also in this competition 💥

[Hey_Ananyasingh]

Hello professor Walter lewin i am ananya Kumari I read in class 10 those who try never give up 😊
Speaking about a period T within thos problem to refer to the angular velocity is beat confusing, as there is no constant period ( and no constant angular velocity), as the ball keep s accelerationg with a constant acceleration, and therefore the period of one full rotation will get shorter and shorter as the train / belt and the ball both accelerated 🤗🤗
Thank for lecture 💐🥰

[mastipathsala]

Sir if a body moves with pure rolling then what is the acceleration and velocity of that point which is contact to the surface

[omkar_thite]

Is not friction in opposite direction of relative motion between belt and the ball? Friction should be leftwards in this case if belt is going rightward. What am I missing?

[oldtvnut]

Note: as a sanity check you can also calculate the energy used to move the belt over time (F x belt travel distance) and verify that it equals the total kinetic energy of translation and rotation of the ball.

[wouterdobbelaere]

Speaking about a period T within this problem to refer to the angular velocity is a bit confusing, as there is no constant period (and no constant angular verlocity), as the ball keeps accelerating with a constant acceleration, and therefore the period of one full rotation will get shorter and shorter as the train/belt and the ball both accelerate.

[thundereagle]

Sir do you have a lecture in series and parallel circuits

[symoumsyfullahpriyo]

It seemed easier though. Would that I were not such a naive! Yet not giving up so quick. Going to check 8.01 soon.

[zabihullohibrohimov]

Could you tell me why epsilon zero equel to 8.85 ten to minus 9

[anthonyrstrawbridge]

Thank goodness it wasn't a boulder tumbling up river.

[yashsrivastava]

me watching art quizzes before jee advance😂

[hanslepoeter]

Could not find the time. I'm in Berlin. Visited the jewish memorial, the wall, many musea and other things.