University Physics (OpenStax) Vol 1, 2021 P2311 Homework 6 (Ch. 6) Assigned: Problems Ch. 6 P 26,43,48,53,54,63,65,66,67,73 (65-73 on centripetal force) Ch 6 Problems 26. T1=93.6N, T2=155.6N, T3=200 N 43. a) 2 m/s^2 b) 7.8 N c) 2.0 m/s 48. a) 588 N b) 1.96 m/s^2 53. a = g(sin 0 - mu_k cos 0) (0=theta) 54. a = Fnet/m with Fnet = mg*sin5 + 0.1mg*cos5 a = g (sin5 + 0.1*cos5) so a = 1.83 m/s^2 63. a) 46.5 N, b) Book answer (0.629 m/s^2) is wrong! --should be--> 0.66 m/s^2 soln: a = Fnet,x / m Fnet,x = Fcos25 - f_k with f_k = 0.03(mg-Fsin 25) f_k = 12.64 N and F = 46.5 N so Fnet,x = 42.14 - 12.64 = 29.5 N and a = 29.5 / 45 = 0.66 m/s^2 65. a) 483 N, b) 17.4 N, c. 2.24, 0.0807 66. Fc = 3944 N 67. 4.14 degrees 73. a) F_seat = 179.4 N b) F_seat = 290.5 N c) v = 8.28 m/s Check #43 and #54.