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  3. AP Physics 1 - Q&A: Newton's Laws & Equilibrium

ap physics 1 - q&a: newton's laws & equilibrium

originally streamed in 2019 with Casey LiStudent
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Q&A session covering equilibrium, forces, and torque problems for AP Physics 1. Join Casey Li as students work through incline problems, tension in cables, friction analysis, and torque calculations. Perfect for exam prep and strengthening your probl ...more

covered in this stream

units
Unit 2 – Force and Translational DynamicsUnit 5 – Torque and Rotational Dynamics
topics
2.2 Forces and Free-Body Diagrams2.4 Newton's First Law2.5 Newton's Second Law2.6 Gravitational Force2.7 Kinetic and Static Friction5.3 Torque5.5 Rotational Equilibrium and Newton's First Law in Rotational Form

timestamps

  • 0:00

    Q&A Session

  • 3:21

    Host Introduction

  • 5:24

    Equilibrium Overview

  • 6:27

    Car on Incline Problem

  • 8:42

    Friction Force Analysis

  • 10:47

    Trig Shortcut Explanation

  • 13:25

    Finding Weight and Normal

  • 15:36

    Tightrope Walker Tension

  • 18:49

    Y-Direction Forces Balance

  • 21:00

    Traffic Light Cables

  • 23:02

    Summation of Forces

  • 25:06

    Solving for Tensions

  • 28:57

    Torque Introduction

  • 29:29

    Seesaw Problem One

  • 33:06

    Moment Calculation

  • 35:50

    Seesaw Problem Two

  • 39:02

    Massless Bar Forces

  • 43:42

    Opposite Direction Forces

  • 48:55

    Additional Questions Invite

  • 49:58

    Seesaw with Three People

  • 53:35

    Torque Equilibrium Calc

  • 56:18

    Session Conclusion

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Study Content & Tools

Study GuidesFRQs + AI ScoringAP Essay Grader for StudentsAI Grading for TeachersPractice QuestionsGlossaryScore Calculators

Company

What's New?PricingBulk DiscountsTestimonialsFAQsEmail us

Resources

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history

🌎 ap world history🇺🇸 ap us history🇪🇺 ap european history

social science

✊🏿 ap african american studies🗳️ ap comparative government🚜 ap human geography💶 ap macroeconomics🤑 ap microeconomics🧠 ap psychology👩🏾‍⚖️ ap us government

english & capstone

✍🏽 ap english language📚 ap english literature🔍 ap research💬 ap seminar

arts

🎨 ap art & design🖼️ ap art history🎵 ap music theory

science

🧬 ap biology🧪 ap chemistry♻️ ap environmental science🎡 ap physics 1🧲 ap physics 2💡 ap physics c: e&m⚙️ ap physics c: mechanics

math & computer science

🧮 ap calculus ab♾️ ap calculus bc📐 ap precalculus📊 ap statistics💻 ap computer science a⌨️ ap computer science p

world languages

🇨🇳 ap chinese🇫🇷 ap french🇩🇪 ap german🇮🇹 ap italian🇯🇵 ap japanese🏛️ ap latin🇪🇸 ap spanish language💃🏽 ap spanish literature

career kickstart

💼 ap business with personal finance🔒 ap cybersecurity

go beyond AP

high school exams

✏️ PSAT🎓 Digital SAT🎒 ACT

honors classes

🍬 honors algebra II🫀 honors anatomy🐇 honors biology👩🏽‍🔬 honors chemistry💲 honors economics📐 honors geometry⚾️ honors physics📏 honors pre-calculus📊 honors statistics🗳️ honors us government🇺🇸 honors us history🌎 honors world history

college classes

👩🏽‍🎤 arts👔 business🎤 communications🏗️ engineering📓 humanities➗ math🧑🏽‍🔬 science💶 social science

hs classes

🏛️ alabama history⛰️ appalachian studies🌴 california history🌍 earth science🌐 ethnic studies🐊 florida history🍑 georgia history🌎 global studies🌺 hawaiian studies📰 journalism🪶 native american studies🌵 new mexico history🤠 oklahoma history⚗️ physical science🎙️ speech and debate🤝 texas government🤠 texas history🌲 washington state history🕊️ world religions
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© 2026 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.