1e 2a 3a 4d 5c 6b 7b 8c 9b 10d

11a)  with East = +x and North = +y, vx =  0.1747 m/s, vy = -0.1144m/s.
b) 0.903 m/s

12a) 0.0491 rad/2  b)  -138 J  c) Kinetic energy is lost to heat and vibrations

13a)  0.0283 kgm2  b) 0 (force on line with center of rotation, lever arm=0) c) 0.0354 N

14a) 627 kg/s  b)  64 m/s