eloquent logic - vector kinematics

Legend

l	=	distance
t	=	time
v	=	speed/ velocity
V_av	=	average speed
l	=	change in distance
t	=	change in time

Vector Kinematics Basic Concepts

In order to describe the movement of objects, we need to use vectors, a quantity or magnitude with a direction associated with it.
Examples: 1) 30 km/h west 2) 20 cm up 3) 10 N force toward you

Scalars are any magnitudes with NO direction associated with them.
Examples: 1) 64 Kg 2) 20 cm long 3) 10 m in the air

When studying how and where objects move, vectors must be used, and in the following ways:
1) To describe an object's resultant magnitude and direction of motion by the component vectors acting on it.

example:

R is made up of the horizontal and vertical components Rx and Ry.

The horizontal and vertical components of R

2) To determine an object's resultant motion by adding up (or subtracting) the component of its movement.

example:

Vectors can be added or subtracted

Rx and Ry components produce a resultant movement R.

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Velocity/Speed