forces Flashcards
force
push/pull that tends to alter the motion state of a body (N)
3 types of forces
mechanical
gravitational
frictional
1st law
law of inertia
- everybody continues in its state of rest/of uniform motion in a straight path, unless compelled to change that state by forces impressed upon it
2nd law
law of acceleration
- change of motion proportional to the force impressed and is made in the direction of the straight line in which that force is impressed
3rd law
law of action/reaction
- to every action there is always opposed and equal reaction
linear force equation
ma
moment equation
Ia
m&i
ineria - physcial property that resists motion, mass of moving segments, distribution of mass
F&moment
kinetics - forces that cause motion
a&alpha (4)
kinematics - parameters of motion
whole body movement
segment movement
joint rotation