Part of ME-02 — Kinematics

Kinematics — Complete Formula Reference with Dimensional Analysis

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SUVAT Equations

v = u + at \qquad [$LT^{-1}$] = [$LT^{-1}$] + [$LT^{-2}$][T]

s = ut + \tfrac{1}{2}at^2 \qquad [L] = [$LT^{-1}$][T] + [$LT^{-2}$][T^2]

v^2 = u^2 + 2as \qquad [L^2$T^{-2}$] = [L^2$T^{-2}$] + [L$T^{-2}$][L]

s_n = u + \frac{a(2n-1)}{2} \qquad [L] = [$LT^{-1}$] + [$LT^{-2}$][T]

Projectile Motion

T=2usinθgH=u2sin2θ2gR=u2sin2θgRmax=u2gT = \frac{2u\sin\theta}{g} \quad H = \frac{u^2\sin^2\theta}{2g} \quad R = \frac{u^2\sin 2\theta}{g} \quad R_{max} = \frac{u^2}{g}

Vector Operations

Ax=AcosθAy=AsinθA=Ax2+Ay2A_x = A\cos\theta \quad A_y = A\sin\theta \quad A = \sqrt{A_x^2+A_y^2}

AB=ABcosθA×B=ABsinθ\vec{A}\cdot\vec{B} = AB\cos\theta \quad |\vec{A}\times\vec{B}| = AB\sin\theta

Circular Motion

ω=vrac=v2r=ω2r\omega = \frac{v}{r} \quad a_c = \frac{v^2}{r} = \omega^2 r

Standard Values

QuantityValue
gg9.8 m/s2s^{2} (use 10 m/s2s^{2} in NEET unless stated)
sin30°\sin 30°0.5
sin45°\sin 45°120.707\frac{1}{\sqrt{2}} \approx 0.707
sin60°\sin 60°320.866\frac{\sqrt{3}}{2} \approx 0.866
cos30°\cos 30°0.866
cos45°\cos 45°0.707
cos60°\cos 60°0.5

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