ap physics quiz 11/18/25

constant velocity means

acceleration is 0

ff (force of friction) =

μkFn

Fx =

ma

how to know if the x and y directions are balanced

if acceleration = 0

gravity is

9.8

if it says constant speed, what do you know

a = 0

friction is there

w (weight) is the same as

Fg (gravity)

what is static friction represented by

𝜇𝑠

how to know if the friction is static or kinetic

static opposes the start of friction and kinetic is when the object is sliding

if there is applied force going up a ramp, to find normal force, what would the equation be?

FN= mgcos(theta) if the force is parallel with the ramp

or

FN = mgcos(theta) + Fsin(a)

where F = applied force and a = angle the applied force is making

kinetic friction equation

𝜇kFN

how to calculate the net force acting on the object

Fnet = ma

to find applied force what's the equation

F = ma

to find acceleration, divide F by M

if there is applied force going up a ramp, what is the equation to find the friction force

Fx = FA  + W  + Ff = max

___ - (__)(__)sin theta ___ = max