01. We wish to describe the motion of a Yo-yo. We take the yo-yo to be...
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01. We wish to describe the motion of a Yo-yo. We take the yo-yo to be a uniform cylinder of radius R = 0.030 m and mass M = 0.020 kg. A string of negligible mas is wound around the outer edge of the cylinder. The free end of the string is held, and the string unwinds as the yo-yo falls. a) What angle does the yo-yo rotate through as it falls a distance h? (The string does not slip on the surface of the cylinder) b) Draw a free body diagram for the yo-yo. Draw another diagram showing only those forces that produce a non-zero torque about the axis of the yo-yo c) Write down equations for the linear and angular acceleration of the yo-yo. Find the tension of the string d) Use energy concepts to find the angular velocity of the yo-yo ( in rad/s) after it has fallen from rest by h = 0.25 m 01. We wish to describe the motion of a Yo-yo. We take the yo-yo to be a uniform cylinder of radius R = 0.030 m and mass M = 0.020 kg. A string of negligible mas is wound around the outer edge of the cylinder. The free end of the string is held, and the string unwinds as the yo-yo falls. a) What angle does the yo-yo rotate through as it falls a distance h? (The string does not slip on the surface of the cylinder) b) Draw a free body diagram for the yo-yo. Draw another diagram showing only those forces that produce a non-zero torque about the axis of the yo-yo c) Write down equations for the linear and angular acceleration of the yo-yo. Find the tension of the string d) Use energy concepts to find the angular velocity of the yo-yo ( in rad/s) after it has fallen from rest by h = 0.25 m
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Related Book For
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
Posted Date:
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