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branch of mechanics that explains the "what" and "how" of motion
The object of analysis; it could be a whole person, or part of a person, or an inanimate object.
A collection of components organized to accomplish a specific function or set of functions.
A way of representing a body that has no dimensions.
frame of reference
assists one in physics in which one chooses a place (point) a measure it against changes in position.
Center of a coordinate system is
A point toward something, determined by its orientation and sense.
A straight line running through the origin specifying a direction from the origin.
A particular reference line (horizontal, vertical, north, south, east, or west).
Specified by two points. Going from point A to point B is one sense, and from B to A is the opposite sense.
Is the distance and direction away from a reference point
a physical quantity that has magnitude but no direction
a displacement distinguished by magnitude and direction but not by location.
A change in position (delta p).
a path taken and always a positive number
The horizontal axis on a two-dimensional graph; the x-axis.
The vertical axis on a two-dimensional graph; the y-axis.
How quickly a value is increasing or decreasing with time.
Units: cm/s, m/s, mi/hr, km/s ...
a speed in a particular direction.
On a X vs. t graph, the velocity is represented by the_
A number representing the value of a quantity if that quantity did not change (was constant) throughout the period of interest.
Speed given at any point of time
(physics) a rate of change of velocity
How fast one body is moving in relation to another body; vb-a (velocity of b relative to a) = vb- va
The total value after summing all the individual values.
The magnitude of the value regardless of the sign.
An object in the air that is only subject to the force of gravity and wind resistance after it leaves the ground.
Locomotion over land.
The period from the initial contact of the one foot to the initial contact of the other foot.
The number of steps taken in a given period of time (step rate).
The period from initial contact of one foot to the next initial contact of that same foot.
range of motion
The amount of movement available at a joint in a given direction.
The ability to control the body over its base of support.
The ability to produce force.
(physics) the rate of doing work