AP Physics C: Mechanics

All special conditions

if in state of static force equilibrium

F_net=0

if in state of Uniform circular motion

a_c=v²/r, traveling at constant speed and not velocity

if object takes a path that returns to original location

conservative force=0

if object has net mechanical energy of zero

conservation of energy; E=U_g+U_s+K

what is work

change in energy

if no net force acting on a object or system (Hint: cm)

Center of mass won’t accelerate

if elastic collision

momentum and kinetic energy conserved

torque equilibrium

T=0

point mass eq for moment of inertia

MR²

if no slip

v=v_cm

small angle approximation

sin(theta)= theta for angles less than 1.5rad or 10^deg

if in orbit

angular momentum, and mechanical energy is conserved

when is angular momentum conservation disrupted

tangential forces

how do you approach a question that asks for a graph that you can get the variable from

put into y=mx+b and the linear slope is the variable

what is the equation for non-conservation of linear momentum

P=P_i + I; where I is impulse

what equation is not on the equation sheet for constant acceleration

x= .5(v_f+v_i)t