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Tuesday, 16 July 2013 12:55

D2-31 OBERBECK CROSS

Additional Info

  • ID Code: D2-31
  • Purpose: Illustrates rotational analog of Newton's second law of motion
  • Description: Various masses M can be hung on a string wound around an axle of either of two radii R to provide a torque T = MgR. Four brass masses m can be positioned along the arms at one of four distances l from the axis of rotation to provide a moment of inertia I = 4ml^2. The angular acceleration a = T/I = MgR/4ml^2 can then be calculated. The angular acceleration can be determined experimentally by measuring the time required for the system to rotate one complete revolution starting from rest: a = 2 d/t^2, where t is the time required for the device to rotate through the angle d in radians.
  • Availability: Available
Read 909 times Last modified on Thursday, 24 July 2014 16:41
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