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The variables include acceleration (a), time (t), displacement (d), final velocity (vf), and initial velocity (vi). If values of three variables are known, then the others can be calculated using the equations. This page demonstrates the process with 20 sample problems and accompanying solutions.
- Kinematic Equations
Kinematic equations relate the variables of motion to one...
- Problem-Solving Strategy
Example Problem A. Ima Hurryin is approaching a stoplight...
- Problem Set
This collection of problem sets and problems target student...
- Kinematic Equations
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Physics Problems and Solutions: Homework and Exam Physexams.com 1 Vectors 1.1 Unit Vectors 1. Find the unit vector in the direction w⃗= (5,2). Solution: A unit vector in physics is defined as a dimensionless vector whose magnitude is exactly 1. A unit vector that points in the direction of A⃗is determined by formula Aˆ = A⃗ |A⃗|
Express your answers to problems in this section to the correct number of significant figures and proper units....
- Unit Conversion Examples
- Coupled Systems Example Problems
- Friction Example Problems
- Momentum and Collisions Example Problems
- Simple Pendulum Example Problems
- Harmonic Motion and Waves Example Problems
- Heat and Energy Example Problems
- Charge and Coulomb Force Example Problems
There are now too many unit conversion examples to list in this space. This Unit Conversion Examplespage is a more comprehensive list of worked example problems.
Coupled systems are two or more separate systems connected together. The best way to solve these types of problems is to treat each system separately and then find common variables between them. Atwood Machine The Atwood Machine is a coupled system of two weights sharing a connecting string over a pulley. This example problem shows how to find the ...
These example physics problems explain how to calculate the different coefficients of friction. Friction Example Problem – Block Resting on a Surface Friction Example Problem – Coefficient of Static FrictionFriction Example Problem – Coefficient of Kinetic Friction Friction and Inertia Example Problem
These example problems show how to calculate the momentum of moving masses. Momentum and Impulse Example Finds the momentum before and after a force acts on a body and determine the impulse of the force. Elastic Collision Example Shows how to find the velocities of two masses after an elastic collision. It Can Be Shown – Elastic Collision Math Step...
These example problems show how to use the period of a pendulum to find related information. Find the Period of a Simple Pendulum Find the period if you know the length of a pendulum and the acceleration due to gravity. Find the Length of a Simple Pendulum Find the length of the pendulum when the period and acceleration due to gravity is known. Fin...
These example problems all involve simple harmonic motion and wave mechanics. Energy and Wavelength Example This example shows how to determine the energy of a photon of a known wavelength. Hooke’s Law Example Problem An example problem involving the restoring force of a spring. Wavelength and Frequency Calculations See how to calculate wavelength ...
Heat of Fusion Example Problem Two example problems using the heat of fusion to calculate the energy required for a phase change. Specific Heat Example Problem This is actually 3 similar example problems using the specific heat equation to calculate heat, specific heat, and temperature of a system. Heat of Vaporization Example Problems Two example ...
Electrical charges generate a coulomb force between themselves proportional to the magnitude of the charges and inversely proportional to the distance between them. Coulomb’s Law Example This example problem shows how to use Coulomb’s Law equation to find the charges necessary to produce a known repulsive force over a set distance. Coulomb Force Ex...
www.physicsclassroom.com · calcpad · vecforceVectors and Forces Problem Sets - The Physics Classroom
- For each collection of listed forces, determine the vector sum or the net force. Set A. 58 N, right. 42 N, left. 98 N, up. 98 N, down. Set B. 14 N, left. 16 N, up.
- Hector is walking his dog (Fido) around the neighborhood. Upon arriving at Fidella's house (a friend of Fido's), Fido turns part mule and refuses to continue on the walk.
- Helen is parasailing. She sits in a seat harness which is attached by a tow rope to a speedboat. The rope makes an angle of 51° with the horizontal and has a tension of 350 N. Determine the horizontal and vertical components of the tension force.
- At one moment during a walk around the block, there are four forces exerted upon Fido - a 10.0 kg dog. The forces are: F = 67.0 N at 30.0° above the horizontal (rightward and upward)
This collection of problem sets and problems target student ability to use Newton's laws and associated mathematics to solve physics word problems.
There are over 140 of them and they are fully solved, showing all the steps. They are provided as handwritten PDF files which you can conveniently download. The examples cover mechanics topics at a level typical of physics courses in senior high school, first year college/university, and upper year college/university.
