![]() After manipulating these variables we would understand the relationship it has with force. Each variable would be manipulated to see what would happen to the force if the values were changed. The data collected would come from the following formula:į =, where L is the length from mass 1 to the pivot point on the meter stick, M is the mass being used, g is gravity, r is the length from the pivot point to the where the spring is attached and theta is the angle that the spring is being pulled at between 0 ̊ and 180 ̊. All of this was done so in the end we could calculate the force of the torque. A meter stick was used along with one mass and a spring the meter stick was placed at its pivot point to get the system at static equilibrium. In this lab we set up a system to understand torque and static equilibrium. Torque has to do with static equilibrium because for an object to be in static equilibrium not only must the sum of the forces be zero, but also the sum of the torques about any given point Torque is known as the cross product between the distance vector and the force vector. Theta (θ) is the angle between the force vector and the lever arm vector. Where r is the vector from the axis of rotation to the point on which the force is acting. Torque is defined as Torque = r x F = r F Sin (θ). ![]() The torque rotates about an axis, that we called the pivot point. The torque can be thought of as a rotational force. Torque is a measure of how much acting on an object causes that object to rotate. All these are needed in order to get the meter stick in static equilibrium and calculating the torque. The objective of this torque lab is to apply the conditions for equilibrium of a rigid body to a meter stick and to determine the center of gravity of the meter stick, mass of the meter stick, and the mass of the unknown objects by applying the known torques. ![]()
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