Why is it hard to move a heavy bookcase across a carpeted floor? And why is it easier to keep it moving than it was to get it started moving? You might think it's all about weight, but actually it's about friction. Two kinds of friction!...

In this physics lesson, we break down how the force of friction always opposes sliding motion, whether it’s static or kinetic friction. Through clear demonstrations, motion tracking, and connections to Newton’s Laws of Motion, you’ll see...

This content delves into analyzing forces on an inclined plane, focusing on static and kinetic friction to control the motion of a box. Learn to calculate forces needed to prevent slipping, initiate upward movement, and maintain constant...

Explore Newton's Laws of Motion with this physics problem. Determine if a block slides down a vertical wall when pushed by a horizontal force and calculate the wall's reaction force in unit-vector notation.

This content explores the kinetic energy of a rolling object, comprising both rotational kinetic energy (1/2 I omega^2) and translational kinetic energy (1/2 M v_com^2). It emphasizes energy conservation in rolling, the crucial role of...

This content explains how to analyze forces on an inclined plane for a loaded box, differentiating between static and kinetic friction. It demonstrates calculations for the minimum force to prevent sliding down, the force to initiate...

Friction is the resistance that one object or surface experiences when moving over another object or surface. The two types of friction that come into play when moving two objects against one another are static and kinetic. Static...

We interleave the pages of notebooks to see how hard it is to pull them apart. As the amount of interleaving increases, we see that the force required to separate them also increases. This is because the friction between the notebooks is...

Newton’s Third Law states that for every force exerted by one object on another, the second object exerts an equal and opposite force on the first. These forces act simultaneously and are external to the system, meaning they don't...

In this video, we tackle three multiple-choice questions related to friction. We start with a problem involving a block and a cube, discussing the forces at play and determining the force preventing acceleration. Next, we analyze a book...

Vector Man enrols into Ian’s superhero training programme! This lesson will explain how static friction is dependent on the applied force, normal force and roughness of a surface, but independent of apparent contact...

My solutions to Free Response Question #2 from the 2017 AP Physics 1 Exam. Also included are my reflections on how to get more points on the exam.

This Experimental Design question also works as a part of the AP Physics C:...

My solutions to Free Response Question #1 from the 2016 AP Physics 1 Exam. Also included are my reflections on how to get more points on the exam.

This Short Answer question also works as a part of the AP Physics C: Mechanics...

0:00 Intro

0:38 Vectors vs. Sc
alars
1:05 The Uniformly Accelerated Motion
Equations
2:
07 Accelerati
on
2:42 Velocity
3:03 Derivative
and Integral Definiti
ons
4:01 Projectile Motion
4:57...

Lesson 6 (Friction) of Dianna's Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this video: Problem1:...

A 25 kg child is sitting on the edge of a merry-go-round. The merry-go-round has a mass of 255 kg and is rotating at 2.0 radians per second. The child crawls to the middle of the merry-go-round. What is the final angular speed of the...

We use Newton’s Second Law and Uniformly Accelerated Motion to experimentally determine the Static Coefficient of Friction between Tires and Snow.

A turntable is turning 45 revolutions per minute. Mints are located 0.030 m, 0.080 m, and 0.130 m from the center of the record. Determine what you can about the coefficient of static friction between the turntable and the mints.

Review of all of the Dynamics topics covered in the AP Physics 1 curriculum.

How Much is a Mermaid Attracted to a Doughnut? A practical, everyday example of Newton’s Universal Law of Gravitation.

Given certain parameters, how would you solve this problem in X direction?<br/>
Newton's Laws Of Motion With Friction, Part 3

Calculus based review of Newton’s three laws, basic forces in dynamics such as the force of gravity, force normal, force of tension, force applied, force of friction, free body diagrams, translational equilibrium, the drag or resistive...

circular motion problem 2

A book is resting on a board. One end of the board is slowly raised. The book starts to slide when the incline angle is 15°. What is the coefficient of static friction between the book and the incline?