Solving a basic projectile motion problem using unit vectors.

The time constant is defined. The equations of motion for a dropped object in terms of the time constant are derived. The graphs for those equations are also shown. Want Lecture Notes?f='http://www.flippingphysics.com/drag-f...'...

Lesson 2 of Dianna's Intro Physics Class on Physics Girl. Topic: Freefall. 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:...

Basic demonstration of how to use spreadsheets in an introductory physics class.

In physics many students discover that they need to learn to understand the material rather than memorize it. This video discusses and shows examples of the differences between the two.

Calculus based review of definite integrals, indefinite integrals, and derivatives as used in kinematics. Graphs of position, velocity, and acceleration as a function of time are compared using derivatives and integrals. Two of the...

I derive the formula for Kinetic Energy and show that the total work done by all the forces acting on an object = 0.5 m (V2^2 - V1^2)

A 73 kg mr.p steps off a 73.2 cm high wall. If mr.p bends his knees such that he stops his downward motion and the time during the collision is 0.28 seconds, what is the force of impact caused by the ground on mr.p?

In this lesson we continue to use what we have learned about solving Uniformly Accelerated Motion (UAM) problems. This problem is more complicated because it involves two, interconnected parts.

This lesson builds on what we learned about position as a function of time graphs. We start with velocity as a function of time graphs, determine what the motion would look like and then draw position and acceleration as a function of...

Now that we have dropped the ball into the bucket, we can determine the final velocity of the ball right before it strikes the bucket. Don't forget that velocity is a vector and has both magnitude and direction. Yep, component vector...

Billy helps you review Conservation of Mechanical Energy, springs, inclines, and uniformly accelerated motion all in one example problem.

Given certain parameters, how would you solve this problem?<br/>
Momentum And Impulse, Part 5

An advanced free-fall acceleration problem involving 2 parts and 2 objects. Problem: You are wearing your rocket pack (total mass = 75 kg) that accelerates you upward at a constant 10.5 m/s^2. While preparing to take pictures of the...

A 28.8 g yellow air hockey disc elastically strikes a 26.9 g stationary red air hockey disc. If the velocity of the yellow disc before the collision is 33.6 cm/s in the x direction and after the collision it is 10.7 cm/s at an angle...

What is the equation of motion of a particle that has a drag force acting on it? It's important to note that we've assumed that the drag force is proportional to the velocity at all times. In reality, other factors are involved too like...

You place a book on a 14° incline and then let go of the book. If the book takes 2.05 seconds to travel 0.78 meters, what is the coefficient of kinetic friction between the book and the incline?

Alright, we did side to side, now let's go up and down! This is important if you are Wile E. Coyote and you want to drop rocks off of cliffs and know beforehand how long it takes to hit the ground, so you can finally get that pesky...

Brooke has planned a surprise! Can you guess where they are going? This lesson will introduce the centripetal force and torque.<br/>
Definitions included: centripetal force, torque

What is the horizontal distance the cannon ball moves? There are a few ways to approach this problem. I personally strongly recommend applying the fundamental formulas directly rather than get used to the projectile motion formulas -...

Again with the graphs? Yes. Absolutely Yes. Graphs are such an important part of any science, especially physics. The more you work with graphs, the more you will understand them. Here we combine graphs and uniformly accelerated...

In this video, you will learn how to rearrange formulas to highlight specific relationships by using the properties of equality. The teacher explains how to solve for mass when force and acceleration are known, and also demonstrates how...

How is work and kinetic energy similar? What is the big picture after watching this video?<br/>
Kinetic Energy And The Work - Energy Theorem, Part 2

Vector components are reviewed. Unit vectors are introduced and an example is walked through. The “r” position vector is introduced and an example using both “r” position vector and unit vectors is worked through.