Straight line motion



s: distance(m), t: time (s, second), v: velocity (m/s), VA: average velocity





Constant Acceleration Straight Line Motion



A: Acceleration, V0: Initial Velocity, V: Velocity At Time T





Distance Function



X0: Initial Distance From Origin, X: Distance At Time T



Uniform Circular Motion


Ø: angle (radian), l: length of an arc, R: radius of circle, ω: angular velocity (rad/s), t: time the object moves a length of l






Centripetal Force



f: frequency (Hz), T: the period for one rotation (s), a: centripetal acceleration, F: centripetal force (N, Newton)


Constant Acceleration Circular Motion



γ: angular acceleration


Acceleration



at : tangential acceleration, an : normal acceleration


Freely Falling From Height H



g: gravitational acceleration, v: velocity at t, s: distance after t, vh: velocity when touching the ground, th: time to touch down






g=9.8m/s2


Vertical Projectile Motion



Hmax : maximum height, v0: initial velocity

Motion equation and velocity equation


Angled Projectile Motion



vx, vy: velocity; x, y: motion equation by t; H: maximum height; L: maximum distance


Horizontal Projectile Motion



th: time when touchdown, vh: velocity when touchdown

Sliding Motion On An Inclined Plane



µ: coefficient of some materials

Fiction coefficient of some materials

MaterialCoefficients of friction
Aluminium0.61
Rubber1.0
Wood0.62
Glass0.94