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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

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