dynamics Flashcards
(8 cards)
what is newtons first law
an object at rest stays at rest
an object in motion stays in motion
unless acted upon by a net force
what is newtons second law
if a net force exist, the object will accelerate in the direction of the net force
how to solve for when applied forces are perpendicular
when forces are applied at right angles we can use PYTHOGOREAN THEORUM
how to solve for appllied force at a angle above the horizon
works on level surfaces
use Fcos@ for x component
and Fsin@ for y
how to solve on inclined planes
Fsin@ for x
Fcos@ for y
Fn is perpendicular to the surface
Fgx pulls down the ramp
Fgy is equal and opposite to Fn
what is the equation to find the force of friction
Ff= Mu*Fn
what are the two types of friction
which is stronger
Static friction: friction on object at rest
Kinetic friction: friction on moving object
static> kinetic
