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Describe the energy transformations involved when a yo-yo is thrown down and then climbs back up the string to be caught in the user's hand?

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Uttam Saikia
Uttam SaikiaLv10
23 Nov 2020

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A yo-yo has a rotational inertia of 890 g.cm^2 and a mass of 165 g. Is axle radius is 4.2 mm, and its string is 135 cm long. The yo-yo rolls from rest down to the end of the string. What is the rotational kinetic energy when the yo-yo rolls down 85 cm?

the string in a yo-yo is wound around an axle of radius 0.470 cm.The yo-yo has both rotational and translational motion, like arolling object, and has mass 0.185 kg and outer radius 1.90 cm.starting from rest, it rotates and falls a distance of 1.18 m (thelength of the string). assume for simplicity that the yo-yo is auniform circular disk and that the string is thin compared to theradius of the axle.

a.) What is the speed of the yo-yo when it reaches the distance of1.18 m?

answer is in m/s.

i'm lost on how the translational and rotational energies arerelated, but the yo-yo is not rolling on its outer radius.

A yo-yo has a rotational inertia of 1180 gร‚ยทcm2 and a mass of 160 g.Its axle radius is 4.0 mm, and its string is 150 cm long. The yo-yorolls from rest down to the end of the string.

(a) What is the magnitude of its linear acceleration?

(b) How long does it take to reach the end of the string?


(c) As it reaches the end of the string, what is its linearspeed?


(d) As it reaches the end of the string, what is its translationalkinetic energy?


(e) As it reaches the end of the string, what is its rotationalkinetic energy?

(f) As it reaches the end of the string, what is its angularspeed?

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