Physics — Mechanics & Motion

Kinematics equations (constant acceleration):

v = v₀ + at

x = x₀ + v₀t + ½at²

v² = v₀² + 2aΔx

g = 9.8 m/s² (use 10 m/s² on MCAT for easier calculation)

Newton's Laws:

1st — Object at rest stays at rest; object in motion stays in motion (inertia)

2nd — F = ma (net force = mass × acceleration)

3rd — Every action has equal and opposite reaction

Work and Energy:

W = Fd cosθ (work = force × displacement × cos of angle)

KE = ½mv²

PE (gravitational) = mgh

Conservation of energy: KE + PE = constant (no friction)

Power: P = W/t = Fv

Momentum: p = mv. Conservation of momentum: m₁v₁ = m₂v₂ (elastic collision). Impulse: J = FΔt = Δp

Reference:

Wikipedia: Classical Mechanics

https://en.wikipedia.org/wiki/Classical_mechanics