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Please tell me if my answers are correct! And if not, please tell me why! Thank

ID: 250434 • Letter: P

Question

Please tell me if my answers are correct! And if not, please tell me why! Thank you so much!


5. A wheel is spinning counterclockwise at a constant rate about a fixed axis. The diagram at right represents a snapshot of the wheel at one instant in time. a. Draw arrows on the diagram to represent the direction of the velocity for each of the points A, B, and C at the instant shown. //Is the b. Is the time taken by points B and C to move through one complete circle greater than, less than, or the same as the time taken by point A? Same c. Rank the linear speeds of the points A, B, and C from largest to smallest A>CB ds of the points A, B, and C from largest to smallest A>CB

Explanation / Answer

a) Correct. But to be more accurate, Point c will move vertically upward, point B will move leftward and point A downward. Arrows you have drawn are slightly tilted

b) Correct. Since it is a rigid body, all points will move together and remain intact.

c) Correct. since linear speed is given by, v = w*r; w is angular speed, which is same for all 3 and r is distance of point from centre, which is in order A>B>C.