Question

(A)    describe uniform circular motion in horizontal plane.

1. 0-2.54 min, 0.45 min,  2.47 min
2. Observe drawing –period, frequency, tangential velocity, angular velocity , push, pull

(B)    describe inertial reference frame and non-inertial reference frame.

1. 26.27-50.50 min; In non-inertial reference frame,
   
   A.  Loose string tied to center of rotating table stretches away from center due-to fictitious force till stretched string pulls one to the center with tension.
   
   B.   When a car is at rest, a plum string with weight in front of you points directly down to earth.   When the car accelerates, it swings toward you (fictitious force), and during constant speed it oscillates. Subsequently, when the car decelerates down to a given constant speed, it swings away from you (fictitious force), and starts to oscillates while maintaining constant speed.       

Answer 1