Equilibrium is the state of an object when no part of

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pointing in a certain direction. Equilibrium is the state of an object when no part of the object is accelerating. Two conditions for equilibrium are that the net force acting on the object is zero, and the net torque acting on the object is zero. The forces that act on an object when it sits on an inclined plane are Weight (W=mg), the frictional force, and the normal force (n). The forces can be resolved by breaking each force into two perpendicular components—one parallel to the inclined plane and the other perpendicular to the inclined plane. Sources of error in this experiment include the following: Friction between the pulleys and strings which can be classified as intrinsic random error. Another error encountered was parallax error while reading values from the spring scale and angle scale. This can be classified under random errors of measurement. There was error in measurement while reading the mass of the aluminum cylinder. There was also error in measurement when trying to make the thread parallel and perpendicular to the inclined plane in Part 3 of the experiment. The source of error that is the largest is error due to measurement. In Part 4 of the experiment, it was observed that even though the actual mass of the load was 0.125kg, the spring scale recorded a smaller mass. This was due to the fact that the load had two tensions acting in the upward direction. These two tensions act in the opposite direction of the weight of the load. This causes the spring balance to read less than the actual mass of the load. The subtraction of the addition of both tensions from the actual weight of the load gives the reading on the spring scale. The more number of strings on a pulley, the more the tension and thus, the lesser is read by the spring scale. Conclusion
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In all,the experiment was successful as the values fell within the acceptable experimental error .This experiment was short and easy. The calculations were more tedious.. The errors in the experiment were taken into consideration in evaluating the experimental result and the result was compare to a theoretical value.
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