Introduction A body moving with constant speed, v, in a circle is said to be in uniform circular motion. This is illustrated graphically in Fig. Such vectors, with common w 's, are called phasors. With this result we derive the expression for centripetal force in the Theory below. Where m is the mass of the body in question, r is the circle's radius, and w is the angular velocity.
Procedure Inspect the apparatus being sure that it is level and securely clamped to the bench.
You will do five runs. Next place the frame in the apparatus for horizontal rotation. Loose jewelry, clothing, or hair could get caught in the apparatus. When looking into the spinning frame keep your eyes somewhat above the horizontal plane of motion. This will virtually insure that you eyes will not be struck in the event of an accident.