This mural is funny because it says that AP Physics is so hard that it's a cross between physics and death (represented by the Grim Reaper)! There are also various important physics equations. F=ma is Newton's 2nd law (force, mass, acceleration), F=uN is the force of friction (coefficient of friction, normal force), E= hf is the energy of a photon (h =planck's constant, f = frequency of the radiation), Vf=Vi+at is a kinematic equation (velocity, acceleration, time, used with projectiles etc), W=Fd (work, force, displacement), P=F/A (power, force, area).
Also, I missed this language in the last mural's picture (Mr. Curtis--> Physics Teacher), so I did not crop it out here.