Laws of motion class 11 One Shot | Chapter 5 Class 11 Oneshot Physics | Pulley tricks JEE NEET CBSE

Abhishek Sahu・2 minutes read

Abhishek Sahu invites viewers to Ratlam Station for an in-depth video on motion, covering topics like force, momentum, and Newton's laws. The video emphasizes understanding forces between blocks, tension in systems, and practical calculations, encouraging viewers to practice similar exercises for a better grasp of physics concepts.

Insights

  • Understanding motion involves concepts like force, momentum, and Newton's Laws, emphasizing the importance of external agents in changing an object's state.
  • Calculating forces between blocks and tension in systems requires creating free body diagrams and understanding acceleration, with specific numerical values aiding in practical applications.

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Recent questions

  • What is the significance of Newton's First Law of Motion?

    The First Law states a body remains at rest unless acted upon by an external force. It emphasizes equilibrium and the absence of change in motion without external influence.

  • How is momentum defined in physics?

    Momentum is the product of an object's mass and velocity, with direction playing a crucial role. It quantifies the motion of an object and is conserved in isolated systems.

  • What is the formula for calculating change in momentum?

    The formula is Final momentum - Initial momentum. It quantifies the difference in momentum before and after an external force acts on an object.

  • How is force calculated in Newton's Second Law of Motion?

    Force is calculated as mass multiplied by acceleration (F = ma). This law quantifies the relationship between an object's mass, acceleration, and the force acting upon it.

  • Why is understanding tension important in physics systems?

    Tension is crucial in analyzing forces within a system, especially when dealing with multiple interacting objects. It helps determine the distribution of forces and accelerations in a system.

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Summary

00:00

Advanced Motion Teaching: Abhishek Sahu Video

  • Abhishek Sahu Adi Mirch Video Readers are welcomed to Ratlam Station for a video on motion.
  • The video aims to provide advanced teaching on motion, ensuring a strong foundation for viewers.
  • Viewers are encouraged to join Abhishek Sahu Sir Physique Jamne Telegram channel for PDF notes.
  • The video delves into the concept of motion, explaining how a body's position changes with time.
  • The importance of understanding the reasons behind motion and the role of external agents is highlighted.
  • The video introduces the concept of force as an external agent that can alter a body's shape, size, or state.
  • It emphasizes the significance of net force in changing a body's velocity or state of rest.
  • Newton's First Law of Motion is explained, stating that a body will remain in equilibrium unless acted upon by an external force.
  • Momentum is discussed as the product of mass and velocity, with direction playing a crucial role.
  • The concept of impulse is introduced as the effect of force over a short time interval, impacting a body's momentum.

12:51

Physics Concepts and Formulas Explained Simply

  • DLP body is equivalent to the former Mara in the video.
  • Cancel the bell on Teachers' Day.
  • Pimples and Channel Momentum are interchangeable terms.
  • Formula for calculating change momentum: Final momentum - Initial momentum.
  • Final momentum on the left side, subtract the right side.
  • Elastic collision of a ball with a wall.
  • Formula for momentum: Mass * Velocity.
  • Newton's Second Law of Motion: F = ma.
  • Newton's Third Law of Motion: Equal and opposite reactions.
  • Calculation of force on individual blocks in a quarter-inch block scenario.

26:17

Calculating Forces and Tension in Blocks

  • The text discusses the calculation of forces applied between blocks placed at a distance of 3 meters from each other.
  • It introduces the concept of "Paun" to calculate forces applied between blocks.
  • The text mentions the application of forces by different blocks on each other, with specific numerical values like 2017 Newtons.
  • It explains the process of creating a free body diagram to understand the forces acting on each block.
  • The text emphasizes the importance of understanding the direction of forces and the concept of tension in the system.
  • It details the calculation of forces applied by different blocks on each other, with specific numerical values like 227 Newtons.
  • The text delves into the concept of tension in the system and how it varies based on the configuration of blocks.
  • It highlights the importance of creating free body diagrams to analyze the forces acting on each block.
  • The text provides a methodical approach to calculating forces and tensions in the system, emphasizing the importance of understanding acceleration.
  • It concludes by encouraging readers to practice similar calculations and understand the principles of tension and force in such systems.

40:19

"System dynamics: tension, acceleration, friction calculations"

  • The system involves two components, one being the mother and the other the meat, denoted as M2, with a time frame of 142.
  • The lower side of the system is associated with tension, rotating on the zodiac sign.
  • The upper side of the tension is distinct from the lower side, with specific actions and calculations involved.
  • The acceleration of the entire system is crucial, with a focus on the lower side's acceleration.
  • Practical steps include applying 100 grams of semolina on the upper side and utilizing specific formulas for mass index reaction calculations.
  • Calculations involve determining the value of mass index reaction through a solution chapter and utilizing formulas for acceleration and tension.
  • The process includes understanding the direction of acceleration and applying specific values to calculate the acceleration.
  • Static friction and its implications are discussed, emphasizing the difficulty in moving a body at rest due to high static friction.
  • The concept of limit infection is explained, dependent on the weight of the object and the maximum volume of static friction.
  • The angle of friction and angle of repulsion are crucial in understanding the dynamics of friction and motion in the system.

54:30

"Pack up, maintain balance, understand gravity"

  • The speaker mentions having a pickup and a pen drive, expressing concern about potential losses if painters arrive.
  • The speaker instructs the listener to pack up and come along, emphasizing the importance of a specific item being kept together.
  • A cup is mentioned, with the speaker explaining how it should be maintained and handled carefully.
  • The speaker describes raising an object by 10 degrees and the significance of maintaining equilibrium.
  • The concept of angles and degrees is discussed, with a reference to a specific angle of reports.
  • Friction and balancing forces are explained in relation to a fallen body, highlighting the role of friction in stopping motion.
  • The speaker concludes by assigning homework related to understanding elevator dynamics and the impact of gravity on acceleration.
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