1. The horizontal surface on which the objects slide is frictionless. If M = 5.0 kg, the tension in string 1 is 60 N. Determine F.
(A) 20 N
(B) 24 N
(C) 30 N
(D) 34 N
(E) 48 N
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統計: A(6), B(51), C(2), D(1), E(0) #2016103
統計: A(6), B(51), C(2), D(1), E(0) #2016103