Physics Experiment#8

# Physics Experiment#8 - Distance d A xis of F Force rotation...

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Axis of rotation Distance, d Force, F Randy Brackins Experiment #8 Date of Experiment: 10/29/09 Date of Submission: 11/13/09 Experiment # 8 Torques and Equilibrium Purpose: The purpose of this experiment was to understand prove that it is possible for a set of forces to rotate on an object even if the net force on it is zero. In order to prove this, one must examine the two main conditions of equilibrium. The first one being that the net force must be equal to zero, and the second, the net torques must be zero. Apparatus: Knife edge clamps, Balance Support, Meter stick, and Masses

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Method: Place two masses of different weight at various points on each side of the stick. Try to balance the stick on the knife edge clamp, and then calculate the torques required to keep the system in equilibrium Data: M 1 = 0.1 kg, M 2 = 0.2 kg F 1 =m 1 g (N) D 1 (m) T 1 = F 1 d 1 (Nm) F 2 =m 2 g (N) D 2 (m) T 2 = F 2 d 2 % Diff. 0.98 0.345 0.338 1.96 0.170 0.333 1.5 % 0.98 0.200 0.196 1.96 0.097 0.190 3.1 % 0.98 0.100 0.098 1.96 0.046 0.090 2.1 % F 1 =m 1 g (N) D 1 (m) T 1 = F 1 d 1 (Nm) F 2 =m 2 g (N) D 2 (m) F 3 =m 3 g (N) D 3 (m) T 2 = F 2 d 2 + F 3 d 3
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