PHYS 1007 Lecture Notes - Lecture 8: Circular Motion, Angular Acceleration, Angular Displacement
9 Apr 2016
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Two types of force: interacion at a distance like newtons grav. On an incline, force pulling object on the slope downwards, =mgsin . Uniform circular moion: angular displacement, angular velocity relaion to linear velocity. = f i w= / t: angular acceleraion (relates to linear acc. ) is perpendicular to the centripetal acceleraion conversion factor is : w= v r. = a r (tangential : centripetal acceleraion (radial, poining in) = 2r: for uniform circular moion where ar=0, ** if 0, then non-uniform circular moion. When pushing on an object, before it starts moving, the fricional force equals the applied force. As soon as it starts to move, the staic force barrier is broken and you suddenly need less applied force. Also, the fricional force is much lower while moving the object. See fig 777 on this document (look up) Now, on top of tension pulling object up, grav.
