Please solve and provide steps! Correct answers are included.

Answers to Problem Sets III (Ch. 4 & 5) and IV (Ch, 6 & 7) 4-1 a = 1.24 m/s2 y 5-1 u = 1.22 4-2 F = 84.6 N 5-2 F = 245 N 4-3 FC23 = 3.91N 5-3 m =67.1 kg FC12 = 6.46 N 5-4 AV = -1.39 x 10-6 m3 = -1.39 cm3 4-4 F = 103 N 4-5 F = 7.85 N 0 = 146 4-6 a = -1.45 m/s2 i.e. downward 7-1 (a) W = 60.0 ] (b) W =0 (c) W = -60.0 J 4-7 (a) N = 91.2 N (b) N = 128 N 7-2 (a) w = 0.550 ] (b) W = 0.275 ] 4-8 T2 = 0.847 N i.e. T2