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Unformatted text preview: 2 T = 2 v = r a = r Torque Rotational equivalent of force torque. Related to force applied, distance from the pivot, and the angle between the radial direction and the force Variable Torques Rotational Inertia F = ma = I A constant for each object. Can be calculated Complete Analogy We can make substitutions into all of the equations we have seen so far to get the rotational equivalent (Newton's Second Law, constant acceleration equations, Equilibrium condition, etc.) Rotational Equilibrium Has condition that Tips: If a torque tends to make an object move counterclockwise, the torque is considered positive. Clockwise negative If the object is in rotational equilibrium, any point can be taken as a pivot point = Bridge Balance Example Walk the Plank...
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This note was uploaded on 12/07/2011 for the course PHYS 220 taught by Professor Chang during the Fall '09 term at Purdue UniversityWest Lafayette.
 Fall '09
 CHANG
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