Could Anyone Help Me I Am Very Confused 1 (82.71 KiB) Viewed 42 times
Could Anyone Help Me I Am Very Confused 2 (68.76 KiB) Viewed 42 times
5. This diagram below represents a selected location of the pendulum with a vector of acceleration a) Describe what acceleration is represented by the vector. b) Draw the projection axes and the centripetal and tangential accelerations vectors. Note that the axes of projections must be inward and tangent to the motion path. Use a "rectangle" to make the axis perpendicular. 6. Explore the motion. Why is the resultant acceleration vector pointing only up when the object is at the lowest position? Calculate the magnitude of the centripetal acceleration at this location. Show work. c) Which of the component acceleration has a higher value, centripetal or tangential? Support your answer using the vector given. a. Why is the magnitude of centripetal acceleration zero at the max displacements? b. Is the magnitude of the centripetal acceleration constant as the object moves back and forth? Support your answer. Is the magnitude of tangential acceleration constant as the object moves back and forth? c) 9 → 0+? 7. The period of a pendulum can be calculated using 7 = 2n $ How does the period of the pendulum change if considering the cases below? Use the idea of limits to computing the answers. Provide a hypothetical scenario that would reflect the situation. a) → ∞07 8. Can the graph T = 27 b) 07 d) g →∞o? ↓ be sketched in coordinate axes? How would you decide about the independent and dependent variables? Thus the axes labeling? Sketch a hypothetical graph..
9. This problem involves the law of conservation of mechanical energy (potential into kinetic). You might use the available virtual devices to help set it up and compute the required quantities. Suppose that the initial angular position of the pendulum is 40°. Then, the pendulum is released, and it passes the angular position of 20° from the equilibrium. When the pendulum is at the position of 20° calculate: The tangential velocity Centripetal acceleration Tangential acceleration Angular velocity 10. Label the centripetal and tangential acceleration on the diagram below. . 11. Suppose that a stationary wheel is revolving at a constant tangential speed around its center of mass. a) Does a point on the outer edge of the wheel experience? A centripetal acceleration? Support your answer. . Angular acceleration. Resultant acceleration. . Angular acceleration . Angular Acceleration Tangential acceleration? Support your answer. b) Suppose that wheel moves forward at a constant translational speed while revolving. Does a point on the outer ream experience? A centripetal acceleration? Support your answer. Tangential acceleration
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