• Electric Field
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Rectilinear Kinematics

SI units & Physics constants


Rectilinear kinematics investigates lows of motion of objects along straight line without any reference to forces that cause the motion to change

Rectilinear kinematics quantities

Here (all units see here):

 is original time on time interval

 is final time

 is position at time

 is final position at time

 is displacement during time

 is original velocity at time

 is final velocity at time

 is acceleration

General formulas

Average velocity


Instantaneous velocity


Instantaneous acceleration

 Relation between acceleration and velocity

Kinematic equation for motion


Uniform motion

Uniformly accelerated motion



At  the motion is accelerated

At  the motion is decelerated