euhd with the hanging mass in this calculation. Show your work. d. Determine the

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euhd with the hanging mass in this calculation. Show your work. d. Determine the percent difference between the radius found from the graph with the position of the side post. Questions Answers should be at least three complete sentences. For credit, you must correctly explain the physics associated with your answer. 1. List the different possible sources of uncertainty in this experiment. Discuss the impact of these sources of uncertainty. Comment on which of t hem could be most significant to the experimental results. .Explain why the value of the hanging mass's weight (include the hanger!) is equal in magnitude to the force that was required to make the bob accelerate. 3.) How would your results have been different if you had used only one rotation? Fifty rotations? 4. What provides the centripetal force needed to keep the rotation object moving in a circle? Explain your answer. Lab Report Required parts: title pa analysis steps above No propagation of error is required. To be completed in lab. ge, data sheets, sample calculations, two graphs, and the

Explanation / Answer

2) If the forces are unbalanced, then the velocity of the object/system will change. That is, the object will have an acceleration (change in velocity). This is the basis for Newton's Second Law of Motion. Newton's Second Law deals with the relationship between cause and effect: what causes an object to change its motion (the effect). Changing the motion of an object means changing velocity (either magnitude or direction) over time, or accelerating the object. Since objects will continue moving in the same manner (to follow the 1st Law), something has to cause an object to change its velocity. This cause is always a force or a combination of forces (ie, an unbalanced force situation). This unbalance is called the net force, or the vector sum of all applicable forces.

Until there is acceleration, the sum of all the forces will be zero. So just as the bob impends to accelerate, the value of the hanging mass’ weight is equal in magnitude of the force.

3) It would be same because after every rotation, the conditions are the same.

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