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Moment of inentia of a is given by I annular disc (here, wheel of bike) RM _R," I'm (R2 + R, 2) R₂² - R2 Im 2 - ) 0.05 X 1800 =90 Nm (a) I = MXF Now, I = IK > a = 2 - & * 15% (0.300? + O- + 0.2803) I= 1 x (0.09+0.0784) 2 = 1.263 - 71.26 rad /s² Hence, angular accelerations 90 1 283 6) Tangential oce, a 2 = 0.300x71.26 - 21.38 m/s2 (c) we know, wf = Witat > t = علیا - ولا & t = 1.123 S CS 80_o Ścanned with CamScanner 71.26
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