Friction and Newton's Laws
Part of the Mechanics section of Coddy's Physics journey. Lesson 18 of 97.
Friction is one more force in Newton's second law:
With no push, friction alone acts, so the object slows down.
No push: friction alone acts along the ice, so a points against v, the way the puck moves, and it slows down.
Challenge
You push a crate to the right with , and it slides across the floor. The kinetic friction coefficient is . Find its acceleration .
Try it yourself
Solve for
This lesson includes a short quiz. Start the lesson to answer it and track your progress.
All lessons in Mechanics
4Inclined Planes
Forces on an InclineGravity ComponentsFrictionless InclineIncline with FrictionWill It Slide?Recap - Ramp Challenge7Projectile Motion
Independent AxesHorizontal LaunchLaunch at an AngleRange and Max HeightRecap - Hit the Target10Work and Energy
WorkKinetic EnergyWork-Energy TheoremGravitational PEConservation of EnergyPowerRecap - Roller Coaster13Impulse and Momentum
MomentumImpulseConservation of MomentumElastic CollisionsInelastic CollisionsRecap - Air Track16Simple Harmonic Motion
What is SHM?Mass on a SpringThe PendulumSHM GraphsEnergy in SHMRecap - Oscillator2Vectors and Newton's Laws
Right TrianglesWhat is a Vector?Adding VectorsAxes and DirectionsVector ComponentsForces Around UsFriction and TensionNewton's First LawNewton's Second LawNewton's Third LawRecap - Net Force3Friction
What is Friction?Static FrictionKinetic FrictionFriction and Newton's LawsRecap - Sliding Crate