Circular Motion in Physics is one of the topics that students struggle greatly. Even if they study Kinematics topics which include 1D motions and the projectile motion (2D motion) prior to the circular motion, the concept of rotation seems quite different. In addition, the introduction of the new definitions (angular quantities), and the presence of the component of acceleration perpendicular to the direction of motion all turn out to be sufficient to frustrate many. In this video, @ArifSolvesIt presents the topic at a relaxed pace by explaining the very definition of the angular quantities such as angular speed, angular acceleration and their relations to the linear quantities such as linear (tangential) speed for systems moving on circular trajectories. Then, he demonstrates the uniform circular motion together with the derivation of the centripetal acceleration and discusses its effect on the system. The reason why there must be a non-zero acceleration for systems moving with constant speed on a circular track may first seem little bit vague. But, @ArifSolvesIt explains the underlying reason in great depth. How can you support this channel? Become a patron: https://www.patreon.com/ARIFSOLVESIT Subscribe: https://www.youtube.com/@arifsolvesit?sub_confirmation=1 You can also follow https://www.facebook.com/arifsolvesit/https://twitter.com/arifsolvesit #kinematics #physics #circularmotion #rotation #centripetalacceleration #angularspeed #angularacceleration

Rolling motion, often confused by many students, is a combined motion of translation and rotation. A system which translates while rotating about its own center of mass is said to be going under rolling motion. If the rotational part of the motion is faster than the motion of the system as a whole (i.e. the translation part of the motion), then, the motion is a rolling motion with slipping. On the other hand, if translation is faster than rotation, the rolling motion involves skidding of the system. When the rotation is connected to translation, the system neither slips nor skids. Rolling without slipping / skidding is a critical phenomenon and needs to be discussed explicitly. "Arif Solves It" provide a thorough discussion of the topic including the major mathematical framework of the topic. 00:15 Introduction to Rolling Motion 05:37 The difference between Slipping, Skidding and No slipping / skidding rolling motions 09:49 Kinetic Energy expression for the rolling motion and rolling without slipping seen as pure rotation 13:17 Rolling Motion without slipping condition derived using differential calculus concepts 16:53 Work done by Static friction for the case of rolling without slipping How can you support this channel? Become a patron: https://www.patreon.com/ARIFSOLVESIT Subscribe: https://www.youtube.com/@arifsolvesit?sub_confirmation=1 You can also follow https://www.facebook.com/arifsolvesit/ https://twitter.com/arifsolvesit

Rolling Motion is a combination of rotational and translational motions. In most cases, these two motions are not connected, thus leading to slipping (or skidding) of the system. In rare cases, rolling without slipping is also possible. Due to the simplicity of its solutions, rolling without slipping case is widely studied but other more frequently observed cases are overlooked. In this video, @ArifSolvesIt presents a problem which involves a system going under a rolling motion with slipping. For the introduction to Rolling Motion, please watch: https://youtu.be/22rZINug-CU How can you support this channel? Become a patron: https://www.patreon.com/ARIFSOLVESIT Subscribe: https://www.youtube.com/@arifsolvesit?sub_confirmation=1 You can also follow https://www.facebook.com/arifsolvesit/ https://twitter.com/arifsolvesit

For the introduction of Rolling Motion, please watch: https://youtu.be/22rZINug-CU Calculating the work done by external forces for the case of rolling motion is not that straightforward. In this problem, @ArifSolvesIt presents two distinct ways to solve the work done by forces acting on a rolling object. Here, the rolling without slipping was assumed. How can you support this channel? Become a patron: https://www.patreon.com/ARIFSOLVESIT Subscribe: https://www.youtube.com/@arifsolvesit?sub_confirmation=1 You can also follow https://www.facebook.com/arifsolvesit/ https://twitter.com/arifsolvesit