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A bead, A, of mass 0.1 kg is threaded on a long straight rigid wire which is inclined at sin() to
the horizontal. A is released from rest and moves down the wire. The coefficient of friction between
A and the wire is u. When A has travelled 0.45 m down the wire, its speed is 0.6 ms¹.
(a) Show that μ =
0.25.
M
[6]



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