# data[].attributes.body
Strength or power exerted upon an object; physical coercion; violence.

Yet for a vivid decade or so, sleaze was, somewhat paradoxically, a force for literacy and empowerment.
http://www.dictionary.com/browse/force?s=t

# data[].attributes.body
Rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity.

The jet engine instantly brought two advances over propellers: it doubled the speed and it was far more reliable.

http://www.dictionary.com/browse/speed?s=t

# data[].attributes.body
The act of accelerating; increase of speed or velocity.
If the effect of acceleration was stronger in some patches than others, that would mean less or more clumping up of galaxies.
http://www.dictionary.com/browse/acceleration?s=t

# data[].attributes.body
The action or process of moving or of changing place or position; movement.
The train was already in motion as she tried to step inside, and her body was crushed beneath it.
http://www.dictionary.com/browse/motion?s=t

# data[].attributes.body
A basis or standard for evaluation, assessment, or comparison; a criterion.
An example of a reference point that is moving is when you look out the window of a car and notice that you are moving faster than the car next to you.
http://www.westerville.k12.oh.us/userfiles/4170/Classes/5610/Measuring%20Motion%20HW%202013.pdf

# data[].attributes.body
Balance forces are two forces acting in opposite directions on an object, and equal in size.

Anytime there is a balanced force on an abject, the object stays still or continues moving continues to move at the same speed and in the same direction.
http://eschooltoday.com/science/forces/what-is-gravity.html

# data[].attributes.body
A net force is defined as the sum of all the forces acting on an object.
For example in free fall, the net force on an object equals its weight - the one force pulling on it. If 2 forces push or pull on an object in opposite directions, and the two forces cancel each other exactly, the net force is zero.
http://study.com/academy/lesson/what-is-net-force-definition-magnitude-equations.html

# data[].attributes.body
The total distance traveled divided by the total time elapsed.

Between 1980 and 1990, the average speed of a Tour de France rider was 37.5 kilometers per hour.
http://www.dictionary.com/browse/average-speed?s=t

# data[].attributes.body
Static friction arises between two objects that are not in motion with respect to each other.

As for example between a cement block and a wooden floor.
http://www.dictionary.com/browse/friction

# data[].attributes.body
Kinetic friction arises between bodies that are in motion with respect to each other,

The friction of rest or quiescence, "statical friction," is greater than that of motion, or "kinetic friction."

http://www.dictionary.com/browse/friction

# data[].attributes.body
Surface resistance to relative motion,as of a body sliding or rolling.

Friction between air and the weapon creates temperatures of up to 3,500 degrees Fahrenheit, hot enough to melt steel.
http://www.dictionary.com/browse/friction