In 1980, over San Francisco Bay, a large yo-yo was released from a crane. Suppose the yo-yo was 105 kg, and it consisted of two uniform disks of radius 39.6 cm connected by an axle of radius 3.96 cm. What was the magnitude of the acceleration of the yo-yo during (a) its fall and (b) its rise? (c) What was the tension in the cord on which it rolled?

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Asked Nov 10, 2019
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In 1980, over San Francisco Bay, a large yo-yo was released from a crane. Suppose the yo-yo was 105 kg, and it consisted of two uniform disks of radius 39.6 cm connected by an axle of radius 3.96 cm. What was the magnitude of the acceleration of the yo-yo during (a) its fall and (b) its rise? (c) What was the tension in the cord on which it rolled?

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Expert Answer

Step 1

The mass of the yo-yo (m)

Uniform disk of radius (R)

An axle radius (R0)

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m 105 kg R 0.396 m R 0.0396 m

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Step 2

(a)

Thee linear acceleration for theta is 90 degree,

The rotational inertial of a yo-yo,

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g a = I 1+ 1 I 2

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Step 3

The magnitude of the acceleration of ...

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g а- 1+ 2R

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Physics

Kinematics

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