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Part A Determine the velocity of the 55-lb block A t wo blocks are released from rest and the 28 lb block 8 moves 2 ft up the
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WA, 1 Sol:- PREF=may Na-55 Cos (60) = 0 NA= 27.5 Fa=0.1(27.5)= 2.7516 +75 Fy=may Ng -28 Cos (30)=0 Ng = 24.2487 FR = 0.1(24.2

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