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Biomechanics equations
Revision for equations needed for exam
14
Sports
Undergraduate 1
05/22/2013
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Term
Speed
 Definition
= Distance ÷ time taken
Term
Velocity
 Definition
= Displacement ÷ time taken
Term
Acceleration
 Definition
= Change in velocity (Vf - Vi) ÷ time taken
Term
Force
 Definition
= Mass x Acceleration
Term
Weight
 Definition
= Mass x 9.81
Term
Momentum
 Definition
= Mass x velocity
Term
Tangential linear velocity
 Definition
= Angular velocity x radius of rotation
Term
Torque
 Definition
= force (m x a) x perpendicular distance from the axis
Term
Moment of Inertia
 Definition
= mass x radius of gyration₂
Term
Pythagoras theorem
 Definition
C₂ = a₂ + b₂
Term
Frictional Force
 Definition
= weight x sine of the angle
Term
Impulse
 Definition
= Force x time
Term
Power
 Definition
= Work ÷ time or Force x Velocity
Term
Horizontal running speed
 Definition
= step length x step frequency
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