Kinematics

A few weeks ago, I just learned about kinematics, which is a way to describe motion. There are four kinematic equations:

Symbols

• d = distance
• t = time
• a = acceleration
• g = gravitational
• Vi  = initial velocity
• Vf  = final velocity

Notes:

• Something starts from rest → Vi  = 0
• Something gets dropped → a = g & Vi  = 0
• Something comes to a stop →  Vf  = 0
• Something falls down → negative acceleration (g = -9.8 m/s^2)
• Slowing down/Deceleration → negative acceleration
• When throwing object up and it comes back down at the same place without air resistance → Vi =  Vf