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Constat You are rebuilding a 1965 Chevrolet. To decide whether to replace the flywheel with a newer, lighter- weight one, you want to determine the moment of inertia of the original, 35.6-cm-diameter flywheel. I is not a uniform disk, so you can't use I -MR to calculate the moment of inertia. You remove the flywheel from the car and use low-friction bearings to mount it on a horizontal, stationary rod that passes through the center of the flywheel, which can then rotate freely (about 2 m above the ground) After gluing one end of a long piece of flexible fishing line to the rim of the flywheel, you wrap the line a number of turns around the rim and suspend a 5.60 kg metal block from the free end of the line. When you release the block from rest, it descends as the flywheel rotates. With high-speed photography you measure the distance d the block has moved downward as a function of the time since it was released. The equation for the graph shown in (Figure 1) that gives a good fit to the data points is d- (165 cm/s)e?. • Part A Based on the graph, does the block fall with constant acceleration? O yes О по Submit Reguest Answer • Part B Use the graph to calculate the speed of the block when it has descended 1.02 m. Express your answer with the appropriate units. Value Units Submit Request Answer • Part C Apply conservation of mechanical energy to the system of flywheel and block to calculate the moment of inertia of the flywheel. Figure O 1 of 1> Express your answer with the appropriate units. d (em) ? 200 I= Value Units 160 120 Submit Reguent Answer 80 40 • Part D - L0 1.2 (s) 0.2 0.4 0.6 0.8 You are relieved that the fishing line doesn't break. Apply Newton's second law to the block to find the tension in the line as the block descended. Express your answer with the appropriate units.

Constat You are rebuilding a 1965 Chevrolet. To decide whether to replace the flywheel with a newer, lighter- weight one, you want to determine the moment of inertia of the original, 35.6-cm-diameter flywheel. I is not a uniform disk, so you can't use I -MR to calculate the moment of inertia. You remove the flywheel from the car and use low-friction bearings to mount it on a horizontal, stationary rod that passes through the center of the flywheel, which can then rotate freely (about 2 m above the ground) After gluing one end of a long piece of flexible fishing line to the rim of the flywheel, you wrap the line a number of turns around the rim and suspend a 5.60 kg metal block from the free end of the line. When you release the block from rest, it descends as the flywheel rotates. With high-speed photography you measure the distance d the block has moved downward as a function of the time since it was released. The equation for the graph shown in (Figure 1) that gives a good fit to the data points is d- (165 cm/s)e?. • Part A Based on the graph, does the block fall with constant acceleration? O yes О по Submit Reguest Answer • Part B Use the graph to calculate the speed of the block when it has descended 1.02 m. Express your answer with the appropriate units. Value Units Submit Request Answer • Part C Apply conservation of mechanical energy to the system of flywheel and block to calculate the moment of inertia of the flywheel. Figure O 1 of 1> Express your answer with the appropriate units. d (em) ? 200 I= Value Units 160 120 Submit Reguent Answer 80 40 • Part D - L0 1.2 (s) 0.2 0.4 0.6 0.8 You are relieved that the fishing line doesn't break. Apply Newton's second law to the block to find the tension in the line as the block descended. Express your answer with the appropriate units.

Physics for Scientists and Engineers, Technology Update (No access codes included)
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotation Of A Rigid Object About A Fixed Axis
Section: Chapter Questions
Problem 10.3OQ: A wheel is rotating about a fixed axis with constant angular acceleration 3 rad/s2. At different...
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Constant You are rebuilding a 1965 Chevrolet. To decide whether to replace the flywheel with a newer, lighter- weight one, you want to determine the moment of inertia of the original, 35.6-cm-diameter flywheel. It Part A is not a uniform disk, so you can't use I =MR? to calculate the moment the flywheel from the car and use low-friction bearings to mount it on a horizontal, stationary rod that passes through the center of the flywheel, which can then rotate freely (about 2 m above the ground). After gluing one end of a long piece of flexible fishing line to the rim of the flywheel, you wrap the line a number of turns around the rim and suspend a 5.60 kg metal block from the free end of the line. When you release the block from rest, it descends as the flywheel rotates. With high-speed photography you measure the distance d the block has moved downward as a function of the time since it was released. The equation for the graph shown in (Figure 1) that gives a good fit to the data points is d = (165 cm/s²)t?. inertia, You remove Based on the graph, does the block fall with constant acceleration? O yes O no Submit Request Answer Part B Use the graph to calculate the speed of the block when it has descended 1.02 m Express your answer with the appropriate units. HA v = Value Units Submit Request Answer Part C Apply conservation of mechanical energy to the system of flywheel and block to calculate the moment of inertia of the flywheel. Figure < 1 of 1 > Express your answer with the appropriate units. d (cm) 200 I = Value Units 160 120 Submit Request Answer 80 40 • Part D -1 (s) 1.0 1.2 0.2 0.4 0.6 0.8 You are relieved that the fishing line doesn't break. Apply Newton's second law to the block to find the tension in the line as the block descended. Express your answer with the appropriate units.
Transcribed Image Text:Constant You are rebuilding a 1965 Chevrolet. To decide whether to replace the flywheel with a newer, lighter- weight one, you want to determine the moment of inertia of the original, 35.6-cm-diameter flywheel. It Part A is not a uniform disk, so you can't use I =MR? to calculate the moment the flywheel from the car and use low-friction bearings to mount it on a horizontal, stationary rod that passes through the center of the flywheel, which can then rotate freely (about 2 m above the ground). After gluing one end of a long piece of flexible fishing line to the rim of the flywheel, you wrap the line a number of turns around the rim and suspend a 5.60 kg metal block from the free end of the line. When you release the block from rest, it descends as the flywheel rotates. With high-speed photography you measure the distance d the block has moved downward as a function of the time since it was released. The equation for the graph shown in (Figure 1) that gives a good fit to the data points is d = (165 cm/s²)t?. inertia, You remove Based on the graph, does the block fall with constant acceleration? O yes O no Submit Request Answer Part B Use the graph to calculate the speed of the block when it has descended 1.02 m Express your answer with the appropriate units. HA v = Value Units Submit Request Answer Part C Apply conservation of mechanical energy to the system of flywheel and block to calculate the moment of inertia of the flywheel. Figure < 1 of 1 > Express your answer with the appropriate units. d (cm) 200 I = Value Units 160 120 Submit Request Answer 80 40 • Part D -1 (s) 1.0 1.2 0.2 0.4 0.6 0.8 You are relieved that the fishing line doesn't break. Apply Newton's second law to the block to find the tension in the line as the block descended. Express your answer with the appropriate units.
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