1.06.08

1.06.08 - W = mg W : weight m : mass g: gravitational...

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BIOM 322 Notes January 6, 2008 Concept of Force : Force is a mechanical disturbance or load It can do the following: 1) Cause a deformation 2) Cause a flow 3) Cause a motion Physical effect of a force depends on: 1) Magnitude 2) Orientation of the force 3) Point of application Forces are vectors (with direction and magnitude) Key Types of Forces : 1) External force (most commonly known) 2) Internal force Generated in response to an external force 3) Gravitational forces
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Unformatted text preview: W = mg W : weight m : mass g: gravitational constant 4) Distributed forces Forces applied over an area Distributed forces Often this can be represented as a point load Pressure is a distributed load P = F/A Units => Pascals (Pa) 1 Pa = 1 N/m^2 5) Frictional force, Fs ` W F Fs W = weight N = reaction force normal to surface N Fs = s N Page 1 of 2 BIOM 322 Notes January 6, 2008 Wy W Wx N W Page 2 of 2...
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1.06.08 - W = mg W : weight m : mass g: gravitational...

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