TFW 8:20 PM @ 88% LON-CAPA A yo-yo capa8.phy.ohio.edu Timer Notes Evaluate Feedb

Question

TFW 8:20 PM @ 88% LON-CAPA A yo-yo capa8.phy.ohio.edu Timer Notes Evaluate Feedback Print Info A yo-yo Due in 3 hours, 39 minutes A 0.320-kg yo-yo consists of two solid disks of radius 11.50cm joined together by a massless rod of radius 1.00 cm and a string wrapped around the rod. One end of the string is held fixed and is under constant tension T as the yo-yo is released. Find the acceleration of the yo-yo Submit AnswerTries 0/10 Find the tension T. Submit Answer Tries 0/10 Post Discussion Send Feedback

Explanation / Answer

I = 1/2*m*R^2
I = 0.5 * 0.32 * 0.115^2
I = 0.002116 kgm²

a)
a = g[1 - I/(mr² + I)]
a = 9.8 * [ 1 - 0.002116 / (0.32 * 0.01^2 + 0.002116)
a = 0.146 m/s²

b
T = g/[r²/I + 1/m]
T = 9.8 / [(0.01^2/0.002116 ) + 1/0.32 ]
T = 3.09 N

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