Math And Physics Formulas

FORMULA SHEET (updated Apr.23/97)

DEREK PAYNE

s = d/t

aav = VV/t

D = Vot+1/2at2

V

Vf2 = Vo2+2aD

Vav = VD/t

Vf = Vo+at

Vins(tan) = VD/t

R = √Fy2+Fx2

tanθ = Fy Fx

Fx = Fcosθ

Fy = Fsinθ

ΣF = ma (w = mg)

Ff = µkN

Ff = µsN

τ = Fl

θrad =s/r

ar = V2/r = (rω)2/r = rω2

d→r = π/180

r→d = 180/π

rpm→rad/min = 2π/1 rev

P = ρgh

PT = ρgh+Pa

ρ = m/V

FB = wa-ww

Pt = Pg+Patm

W = Fd

KE+VPE+VW+VQ+VV+VME = 0

V

PE = mgVh

D = Df-Do

Vav = Vf+Vo 2

V = rω

FB = ρgV (V = AVh)

Pa = F/A(N/m2)

Q = cmVT

KE = 1/2mV2 (J)

Rser = R1+R2

1 = 1+1 V = IR (V)(Ω) = (W) (A)(Ω) = (V) Rpar R1R2 __________________________________________________________________________________________ a

/sinA = b/sinB = c/sinC b2 = a2+c2-ac cosB c2 = a2+b2-ab cosC

a2 = b2+c2-bc cosA

Prec = 2(l+w) Pcir = 2πr Psq = 4s

A = lw A = πr2 A = s2 Atri = 1/2bh Atrap = h/2(B+b) Acyl = 2πr2+2πrh

V = lwh Vsph = 4/3πr3 Vcube = s3 Vpyr = 1/3Bh Vcone = 1/3πr2h V = πr2h Vprism = Bh

LA = 2(lh+lw+wh) A = 4πr2

x = -b±√b2-4ac 2a

y = ax2+bx+c (a≠0)

y = mx+b (m≠0)

m = Vy/Vx

LA = 1/2ps LA = πrs