click below
click below
Normal Size Small Size show me how
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) |