Ch. 8 Homework, Phy 131, Fall 1997, Tulane

Note: ^ denotes power, eg. x^2 = x*x, i.e. x squared 
8.1   (a) 0.2 rad/s    (b) 0.95 rev/s

8.3   (a) -0.03 rad/s  (b) 16.7 rev/min   (c) 33 rev

8.8   (a) 9.8 J    (b) same

8.23  (a) 60 (J s)  (b) 75 kg m^2    (c) 0.8 rad/s

8.33  Force = -F i, r = R j,   Torque = RF k

8.34  -mgx k

8.43  (a) 2.4 J       (b) 67 rad/s^2
      (c) 201 rad/s   (d) 730 J
      (e) 7.2 (J s)   (f) 302 rad
      (g) 730 J
      (b) F = 960 N
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