QUIZ 5

10.  0.84  Reference: #12 discussion
12.  0.16 
14. (a) 4.5x103 N  (b) 3.4x102 N  (c) 31 m/s. Reference: # 82 discussion.
16. (a) 1.7m/s (b) 3.28 m/s
18.  0.22
28.  1.47x103 N. Reference: #34 discussion.
34. (a) 9.77 m/s2   (b) 4.34   m/s2.
50.  (a) ratio = 0.799  (b) ratio = 1.201 
66.. 6.5 m/s
82. (a)  NC > NB > NA. (b) feels lightest to feels heaviest: C, B, A.  (c) Vmax = square root of g*R