Question

In: Physics

The wrench in the figure has six forces of equal magnitude actingon it. Rank these forces (A through F) on the...

The wrench in the figure has six forces of equal magnitude actingon it.

Image for The wrench in the figure has six forces of equal magnitude actingon it. Rank these forces (A through F) on the
Rank these forces (A through F) on the basisof the magnitude of the torque they apply to the wrench, measuredabout an axis centered on the bolt.

Rank from largest tosmallest. To rank items as equivalent, overlap them.

The wrench in the figure has six forces of equal magnitude actingon it. Rank these forces (A through F) on the basisof the magnitude of the torque they apply to the wrench, measuredabout an axis centered on the bolt.Rank from largest tosmallest. To rank items as equivalent, overlap them.

Solutions

Expert Solution

Concepts and reason

The concept required to solve this problem is Torque acting on the different points at the wrench.

Initially, calculate the torque at different points on the wrench. Finally, rank on the basis of magnitude of torque.

Fundamentals

The expression for the torque is as follows:

τ=r×F=rFsinθ\begin{array}{c}\\\tau = \vec r \times \vec F\\\\ = rF\sin \theta \\\end{array}

Here, r is the distance from point to the reference point taken, that is, the magnitude of the torque applied to the wrench measured about an axis centered on the bolt, F is the force acting on the wrench, and θ\theta is the angle between r and F.

Therefore, the torque is as follows:

τ=rFsinθ\tau = rF\sin \theta

Torque is a force that causes the rotation in a wrench. Therefore, rotation only depends on the angle θ\theta .

The direction of torque is either in the counter clockwise direction or in the clockwise direction. This is determined by the direction the object will rotate under the action of the force.

The torque can be maximized when the force is larger in the magnitude, located at a large distance from the axis of interest, and oriented perpendicular to the displacement vector.

The angle between the angle force between the displacement vector and the force applied at point B and E is equal to 9090^\circ .

Thus, the torque at point B is as follows:

τ=rFsin90=rF(1.00)=rF\begin{array}{c}\\\tau = rF\sin 90^\circ \\\\ = rF\left( {1.00} \right)\\\\ = rF\\\end{array}

And, the torque at point E is as follows:

τ=rFsin90=rF(1.00)=rF\begin{array}{c}\\\tau = rF\sin 90^\circ \\\\ = rF\left( {1.00} \right)\\\\ = rF\\\end{array}

Therefore, the torque at point B and E is same.

According to the mathematical definition of torque, the torque can be maximized when the force is larger in the magnitude, located at a large distance from the axis of interest, and oriented perpendicular to the displacement vector.

Thus, the torque is largest on the point D and smallest on the point C.

Therefore, the rank form largest to smallest is as follows:

D>B=E>F>A>CD > B = E > F > A > C .

Ans:

The rank form largest to smallest is D>B=E>F>A>CD > B = E > F > A > C.


Related Solutions

A wrench is used to apply a torque to a bolt. Forces F, through Fall have the same magnitude.
A wrench is used to apply a torque to a bolt. Forces F, through Fall have the same magnitude. The point of application of force F, and F) is a distance d from the center of rotation of the bolt. The application points of F). F, and F3 are all distance d apart, as shown. Use the convention that counter-clockwise torques are positive; clockwise torques are negative. Part (a) Which of the labeled forces will apply the largest magnitude torque on...
If two ends of a rope are pulled with forces of equal magnitude and opposite direction,...
If two ends of a rope are pulled with forces of equal magnitude and opposite direction, the tension at the center of the rope must be zero. True or false? The answer is false. I chose true though and I'm not understanding why. Forces act at the center of mass of the object, so if there are two forces of equal and opposite magnitude, then they should cancel out resulting in zero tension, no?
Two point charges are separated by a distance r and repel each other with forces of magnitude F.
Two point charges are separated by a distance r and repel each other with forces of magnitude F. If their separation is reduced to 0.25 times the original value, what is the magnitude of the forces of repulsion?
The figure shows angular position versus time graphs for six different objects. a) Rank these graphs on the basis of...
The figure shows angular position versus time graphs for six different objects.a) Rank these graphs on the basis of the angular velocity of each object. Rank positive angular velocities as larger than negative angular velocities. Rank from largest to smallest. To rank items as equivalent, overlap them.b) Rank these graphs on the basis of the angular acceleration of the object. Rank positive angular accelerations as larger than negative angular accelerations.Rank from largest to smallest. To rank items as equivalent, overlap...
A monochromatic beam of light is sent through each of the following six optical slides. Rank...
A monochromatic beam of light is sent through each of the following six optical slides. Rank these scenarios on the basis of the angle of the first interference maximum. Rank from largest to smallest. To rank items as equivalent, overlap them. a.) difraction grating with 1000 lines/cm b.)single slit slide with width .04mm c.)single slit slide with width .01mm d.) double slit slide with spacing .08mm e.)diffraction grating with 500 lines/cm f.)double slit slide with spacing .02mm
In the diagram below, there are two charges of and and six points (a through f)...
In the diagram below, there are two charges of +q and -q and six points (a through f) at various distances from the two charges. (Intro 1 figure) You will be asked to rank changes in the electric potential along paths between pairs of points. Q: Using the diagram to the left, rank each of the given pathson the basis of the change in electric potential. Rank the largest-magnitude positive change (increase in electric potential)as largest and the largest-magnitude negative...
Four forces are acting on an object in static equilibrium: Force 1 has a magnitude of...
Four forces are acting on an object in static equilibrium: Force 1 has a magnitude of 46.0 N and is acting at an angle of (45 + A) degrees above the positive x-axis. Force 2 has a magnitude of (15+B) N and is acting along the positive x-axis. Force 3 has a magnitude of 34.5 N and is acting along the negative y-axis. Find the magnitude of the last force, F4. Give your answer in newtons (N) and with 3...
Two forces, F⃗ 1 and F⃗ 2, act at a point. F⃗ 1 has a magnitude...
Two forces, F⃗ 1 and F⃗ 2, act at a point. F⃗ 1 has a magnitude of 8.20 N and is directed at an angle of 64.0 ∘ above the negative x axis in the second quadrant. F⃗ 2has a magnitude of 5.20 N and is directed at an angle of 53.8 ∘ below the negative x axis in the third quadrant. Part A What is the x component of the resultant force? Part B What is the y component...
The cemented achromate of a figure has f = 100mm. the crown glass has n1 =...
The cemented achromate of a figure has f = 100mm. the crown glass has n1 = 1.573 and an Abbe number v1 = 57.4 and the flint glass has n2 = 1.689 and v2 = 31.2. the crown lens is symmetrical biconvex a. calculate the focal lengths f1 and f2 of the two lens. b. Calculate the radii of curvature r1, r3 (using the lens maker#s formula for thin lenses). c. Can one correct the spherical aberration by lens bending?...
Three forces act at point O. Force F1 has magnitude F1 = 17.4 kips. The direction...
Three forces act at point O. Force F1 has magnitude F1 = 17.4 kips. The direction angles for F1 are (α1, β1, γ1) = (76.6°, 108°, 22.6°). Force F2 = (−27.0i + 10.0j + 27.0k) kips. Force F3 = (4.00i + 6.00j − 34.0k) kips. (a)Determine the resultant force FR, = F1 + F2 + F3 in kips [reported in Cartesian vector form]. FR = _____ kips (b) Determine the magnitude of the resultant force in kips. ________kips (c) Determine...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT