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  • FE Mechanical Exam Prep 34, Rigid Body Kinematics Translation and Rotation

    FE Mechanical Exam Prep 34, Rigid Body Kinematics Translation and Rotation
    2026/09/03
    This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How to correctly apply the relative velocity vector equation for general plane motion problems. - The critical condition for rolling without slipping and how to use the instantaneous center of zero velocity as a problem-solving shortcut. - The two essential components of relative acceleration: tangential (α x r) and normal (-ω²r). - Common exam traps, including sign convention errors with angular velocity and forgetting the normal acceleration term. - How to locate and apply the rigid body kinematics equations within the NCEES FE Reference Handbook. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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    3 分
  • FE Mechanical Exam Prep 33, Linear Impulse Momentum and Impact

    FE Mechanical Exam Prep 33, Linear Impulse Momentum and Impact
    2026/09/02
    This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - The fundamental relationship between linear impulse and the change in momentum. - How to correctly define a system to apply the principle of conservation of momentum. - The role of the coefficient of restitution (e) in distinguishing between elastic and inelastic collisions. - A step-by-step approach for solving direct and oblique impact problems. - Common exam traps involving sign conventions, system boundaries, and USCS unit conversions. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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    3 分
  • FE Mechanical Exam Prep 32, Work Energy Power and Efficiency

    FE Mechanical Exam Prep 32, Work Energy Power and Efficiency
    2026/09/01
    This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - The core work-energy equation is T1 + V1 + U_non-conservative = T2 + V2. - Non-conservative work (U) accounts for energy added or removed by external forces like friction or motors. - Potential energy for a spring (V = 1/2 * k * s^2) uses displacement 's' from its *unstretched* length, a common exam trap. - The work done by friction is always negative as it opposes the direction of motion, representing an energy loss. - Power is the time rate of doing work (P = F*v or T*ω), and efficiency is always Power Out / Power In. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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    4 分
  • FE Mechanical Exam Prep 31, Particle Kinetics and Newton's Second Law

    FE Mechanical Exam Prep 31, Particle Kinetics and Newton's Second Law
    2026/08/31
    This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How to apply ΣF=ma using separate Free-Body and Kinetic Diagrams. - Solving connected body problems by isolating each mass and defining kinematic constraints. - The correct coordinate system setup for inclined plane problems with friction. - Using normal-tangential components for objects in curvilinear motion. - A mnemonic to avoid mixing up forces and the resulting mass-acceleration vectors. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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    5 分
  • FE Mechanical Exam Prep 30, Particle Kinematics in Rectangular and Polar Coordinates

    FE Mechanical Exam Prep 30, Particle Kinematics in Rectangular and Polar Coordinates
    2026/08/30
    This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How to select the best coordinate system (Rectangular, Normal-Tangential, or Polar) for any particle kinematics problem. - Where to locate and apply the correct kinematics equations in the Dynamics section of the NCEES FE Reference Handbook. - The critical difference between the radius of curvature (ρ) in the n-t system and the radial position (r) in the polar system. - How to identify common exam traps, such as unnecessarily complex calculations in rectangular coordinates. - A memorable mental shortcut for quickly choosing the most efficient coordinate system under exam pressure. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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    3 分
  • FE Mechanical Exam Prep 29, Static Friction Wedges Belts and Impending Motion

    FE Mechanical Exam Prep 29, Static Friction Wedges Belts and Impending Motion
    2026/08/29
    This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - The critical first step in any friction problem is determining the direction of impending motion. - The static friction force F equals μ_s times the normal force N *only* at the exact moment motion is about to start. - How to treat a wedge problem as two interacting inclined plane problems by using separate free-body diagrams. - Why you must always convert the belt's angle of wrap (β) to radians for the belt friction formula. - A simple mnemonic to ensure you always assign the correct direction to the friction force. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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    3 分
  • FE Mechanical Exam Prep 28, Centroids and Area Moments of Inertia

    FE Mechanical Exam Prep 28, Centroids and Area Moments of Inertia
    2026/08/28
    This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How to calculate the centroid of composite shapes using the NCEES Reference Handbook. - The correct application of the parallel-axis theorem, focusing on the critical 'd' term. - The key distinction between area moment of inertia (for statics and bending) and mass moment of inertia (for dynamics). - How to calculate the radius of gyration and understand its physical significance. - Common exam traps like mixing reference axes and confusing area properties with mass properties. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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    4 分
  • FE Mechanical Exam Prep 27, Frames Machines and Multi-Body Equilibrium

    FE Mechanical Exam Prep 27, Frames Machines and Multi-Body Equilibrium
    2026/08/27
    This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - To find internal pin forces, you must disassemble the structure and create a separate free-body diagram for each member. - Internal forces at a shared pin are an action-reaction pair; they are equal in magnitude and opposite in direction on the connecting members. - The first step is often to analyze the entire structure as a single rigid body to find the external support reactions. - Quickly identifying two-force members is a critical time-saving shortcut, as the force direction is already known. - The three equilibrium equations (sum of forces in X and Y, and sum of moments) are applied to each individual free-body diagram to solve for unknowns. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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    4 分