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Biomechanics
Ch 10- linear kinematics
Question | Answer |
---|---|
Distance & Displacement describes what? | extend of a body's motion |
Distance | Length of the path that a body follows when moving from one location to the next (Scalar) |
Displacement | length of (imaginary) line joining starting position and finishing position and noting direction (vector) |
speed | distance / change in time |
velocity | (displacement/chance in time) & direction |
Instantaneous speed | average speed over a very small distance or unit of time so that the speed does not have time to change |
How do you max vertical jump? | -lower CG in relation to the body -apply as much force to the ground during jumping phase |
Acceleration | rate of change in velocity |
in a race, where is the greatest force? | at the beginning b/c you have less velocity |
Acceleration equation | (V final - V initial) / delta T = Delta V / Delta T |
In a race, where is the greatest force? | At the beginning because you have less velocity. (FORCE ^ - VELOCITY v) |