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mechanics
the study of the action of forces on particles and mechanical systems
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system
an object or group of interacting objects
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biomechanics
application of principles of mechanics to the study of living organisms
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kinematics
- the description of motion: patterns, speeds, and sequencing of movement in respect to time
- --the forces causing the motion are not considered
- -- position, velocity, acceleration
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kinetics
- study of the relationship between the forces acting on a system and the motion of the system
- -- gravity, friction, torque
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statics
- branch of mechanics dealing with systems in a constant state of motion
- -- at rest or a constant direction and speed
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dynamics
- branch of mechanics dealing with systems where acceleration is present
- -- speed and direction is not constant
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scalar quantities
- properties with just magnitude
- --mass, distance
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vector
- have magnitude and direction
- --displacement (distance and direction)
- --Force (angle and magnitude)
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composition
adding vectors together
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