Possible sources of errors include 1) friction in the pulleys, 2) the fact that we ignored the mass of the strings, and 3) errors in direction of the forces if the strings were not at 90 degrees to the a tangent to the ring. Rank the relative importance of these errors in your data.
Table of Contents
What variables affect torque?
Examples: Page 5 Torque is Determined by Three Factors: The magnitude of the applied force. The direction of the applied force. The location of the applied force.
How does center of mass affect torque?
The rotation of a body depends upon the point at which it is hinged. So if a force applied at the center of mass (COM) then it may cause rotation about the axis (if it’s not the one through COM) at which it is hinged by causing a torque to act.
How do you solve torque problems?
Is the graphical or force table method more accurate?
By using all three of these methods, we were able to see how each method produces a slightly different resultant force (N) and resultant direction (in degrees). This is apparent in the data tables. According to our percent error computations, the graphical method is more accurate than the experimental method.
Is analytical or graphical method more accurate?
The analytical method is more accurate than the graphical method, which is limited by the precision of the drawing. For a refresher on the definitions of the sine, cosine, and tangent of an angle, see Figure 5.17.
Which factors affect torque choose more than one answer?
(1) torque depends on two things. the force applied and the distance from the axis of rotation[lever arm] to the force.
Does length affect torque?
This may seam odd, but the different length of screwdriver really doesn’t affect the torque directly. Torque is the force applied times the distance from the axis you are rotating about. So the torque of the screwdriver only really depends on the thinkness of the handle.
What are the conditions in which force Cannot produce torque?
Solution. The forces intersect (or) passing through the axis of rotation cannot produce torque as the perpendicular distance between the forces is 0 i.e. r = 0. โด ฯ โ = r โ ร F โ = 0 .
Why does torque increase with distance?
Torque increases as distance away from the fulcrum a perpendicular force is applied. It also increased when the force itself increases. So perpendicular force and distance directly relate to torque.
Why is the torque zero in the center of mass?
If force is applied at the centre of mass of the body, the perpendicular distance between point pf application of force and centre is zero and thus the torque is also zero.
What are the necessary conditions so that maximum torque is achieved?
Equation of Maximum Torque The maximum torque is inversely proportional to rotor reactance. The maximum torque is independent of rotor resistance. The slip at which maximum torque occur depends upon rotor resistance, R2. So, by varying the rotor resistance, maximum torque can be obtained at any required slip.
Does mass affect torque?
The amount of torque required to produce an angular acceleration depends on the distribution of the mass of the object.
How does angle affect torque?
The magnitude of the torque depends on: Angle between the force and lever arm ฮธ: Directing a force perpendicular to the lever arm increases the torque.
Is torque always perpendicular to force?
The torque is a separate quantity defined to be perpendicular to the force as per the right hand rule. That direction is part of its definition. Because that’s the way that torque is defined.
Is polygon method accurate?
As an important method for the evaluation of quantity of area rainfall, Thiessen polygon method is widely applied because of its high calculation accuracy and fast computation.
What is the purpose of the force table lab?
The Force Table allows us to manipulate and measure the effects of vector quantities.
What is the difference between Equilibrant and resultant?
Resultant (net) force causes the displacement of a body (i.e. body moves). Equilibrant keeps the body at rest (i.e. in equilibrium).
What are the advantages and disadvantages of using graphical vector addition?
- 1 of 3. Graphical: Advantage : gives a visual uderstanding of the problem (and the solution)
- 2 of 3. Disadvantage: Not precise. ( unless performed on graph paper, and even then) Algebraic: Advantage: Precise. Disadvantage: no visual (or very obscure) interpretation of the problem.
What is the head-to-tail method?
The head-to-tail method of adding vectors involves drawing the first vector on a graph and then placing the tail of each subsequent vector at the head of the previous vector. The resultant vector is then drawn from the tail of the first vector to the head of the final vector.
What do you suppose would be the limiting factor in the accuracy of your graphical addition resultant vectors?
The main limiting factor in the accuracy of the graphical addition resultant vectors is the precision in the drawing of the vectors and its measurements.
Does torque always cause rotation?
An object which is not rotating remains not rotating unless acted on by an external torque. Similarly, an object rotating at constant angular velocity remains rotating unless acted on by an external torque.
Can a single force produce torque?
A single point force not acting at the COG, will always provide a torque but this torque will be accompanied by a net linear force as well since there is no opposing force. So, the net motion will be a combination of rotational and linear motion.
What is the right hand rule for torque?
Right Hand Rule for Torque To use the right hand rule in torque problems, take your right hand and point it in the direction of the position vector (r or d), then turn your fingers in the direction of the force and your thumb will point toward the direction of the torque.
Does torque increase with arm length?
The longer the lever arm, the more torque, but the longer the radius, the more moment of inertia, and thus the more torque is required to cause a change in angular acceleration.