Exam 2 (biomechanics) Flashcards
What is biomechanics?
Applications of mechanical principles to understand effects of force on physical functions and structures
What is mechanics?
A branch of physics that studies motion (kinematics) and the causes of motion (kinetics)
We apply the understanding of biomechanics and mechanics to
Improve the outcomes of our movements (performance effectiveness)
Increase or maintain the safety and health of our tissues
Displacement is?
Difference between initial and final positions (specifics more important) *metric system
Displacement formula and unit?
Unit: meters
d= d(final) -d(initial)
Velocity is?
rate of change in position
Velocity formula and units?
Unit: meters/second
v= d (final)- d(initial)/ Delta T
Acceleration is?
rate of change in velocity
Acceleration formula and units?
Unit: meter/second sq.
a= v(final)-v(initial)/Delta t
Mass (m) is?
inertia
Mass units and what it is
Quantity of matter in a body
Unit: kg
What is force?
Friction, gravity, and air resistance
Type of forces
External, Internal forces, forces we apply
Definition external forces?
Applied by another object (ground or another person)
Definition Internal forces?
Forces generated inside the body
