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Given speed is such that it balances the force of friction, hence
Maximum speed vmax = vmgr
Or v2max = mgr
v2max / gr = m
substituting the values, we have
vmax = 17.64 km/hr = 17.6 x 5/18 =4.87
(4.87)2 / 9.8 x 9.8 =m
23.7169/ 96.04
Thus, the cofficient of friction between the tyre and the ground is m = 0.2469
Thanks & Regards,
Vasantha Sivaraj,
askIITians faculty
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