Mnemonic 1: Newton's Three Laws — "ICE"

• I = Inertia (First Law: no force → no change)
• C = Change (Second Law: force causes change in momentum: F = ma)
• E = Equal & Opposite (Third Law: $F_{AB}$ = −$F_{BA}$ on different bodies)

Mnemonic 2: Friction Order — "SKR" (Static King, Kinetic Knight, Rolling Runt)

• Static > Kinetic > Rolling: μ_s > μ_k >> μ_r
• King is hardest to dethrone (hardest to start motion)
• Knight is moderate (sliding is easier than starting)
• Runt is weakest (rolling is easiest of all)

Mnemonic 3: Lift Problems — "UA = Add, DA = Subtract"

• Upward Acceleration = Add a: W' = m(g + a)
• Downward Acceleration = Subtract a: W' = m(g − a)
• Free fall = Zero: W' = 0

Mnemonic 4: Action-Reaction Check — "DOBS" (Different Objects, Both Simultaneous)

• True Newton Third Law pair: forces act on Different Objects, are Both present Simultaneously
• If both forces are on the SAME object → NOT a Third Law pair

Mnemonic 5: Atwood Machine — "Difference over Sum"

• Acceleration a = (Difference of weights) / (Sum of masses) × g
• a = ($m_{1}$ − $m_{2}$)g / ($m_{1}$ + $m_{2}$)

Mnemonic 6: Banking Formula — "Tan = v squared over rg"

• tan θ = $v^{2}$/(rg)
• Remember: "Tire's velocity squared over radius times gravity"