Question

What makes a torque “positive” (note +/- sing in equation) a The torque causes a clockwise...

What makes a torque “positive” (note +/- sing in equation)

a The torque causes a clockwise rotation about the pivot point

b The point where the force applied to the right of the pivot point

c The point where the force is applied it to the left of the pivot point

d The torque causes a counterclockwise rotation about the pivot point

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1a. Is the following statement true or false? Based on convention, a positive torque is the...
1a. Is the following statement true or false? Based on convention, a positive torque is the one that causes clockwise rotation; a negative torque is the one that causes counterclockwise rotation. b. Is the following statement true or false? For a nonzero force applied on a rod, its torque can be zero. c. Is the following statement true or false? The moment arm for a force and the line of action for the same force will always be perpendicular. d....
Two separate forces are applied to the segment producing two separate torques. The magnitude of Torque...
Two separate forces are applied to the segment producing two separate torques. The magnitude of Torque A is equal to 100 Nm and the magnitude of Torque B is equal to 125 Nm. Taking into consideration the direction of both Torque A and Torque B, what is the resultant net torque when you sum the torques and which direction will the segment rotate? A. Net torque = +25 Nm; Direction of rotation = clockwise B. Net torque = + 25...
At the local playground, a 21-kg child sits on the right end of a horizontal teeter-totter,...
At the local playground, a 21-kg child sits on the right end of a horizontal teeter-totter, 1.8 m from the pivot point. On the left side of the pivot an adult pushes straight down on the teeter-totter with a force of 151 N. Part A In which direction does the teeter-totter rotate if the adult applies the force at a distance of 3.0 mfrom the pivot? clockwise or counterclockwise Part B In which direction does the teeter-totter rotate if the...
Lever. We can make a lever by placing a bar on a pivot. Suppose the bar...
Lever. We can make a lever by placing a bar on a pivot. Suppose the bar is 5 meters long. A 20 kg kid and an 80 kg adult seat at two terminals of the bar individually. Initially, the bar is along horizontal direction. A. There are totally three forces exerted on the lever: the force exerted by the kid, the force exerted by the adult and the supporting force exerted at the pivot. What is the value of the...
A car's wheel has a rotational inertia of 3.1 kg m2. Working in a coordinate system...
A car's wheel has a rotational inertia of 3.1 kg m2. Working in a coordinate system where counterclockwise is positive, answer the following questions. Treat parts a, b, and c as stand-alone questions; the response from one is not needed for the following parts. a) If the wheel is spinning with an angular velocity of 6 rad/s counterclockwise and then a torque of 15 N m is applied over a time interval of 4 s, What is the wheel's final...
A car's wheel has a rotational inertia of 2.8 kg m2. Working in a coordinate system...
A car's wheel has a rotational inertia of 2.8 kg m2. Working in a coordinate system where counterclockwise is positive, answer the following questions. Treat parts a, b, and c as stand-alone questions; the response from one is not needed for the following parts. a) If the wheel is spinning with an angular velocity of 6 rad/s counterclockwise and then a torque of 15 N m is applied over a time interval of 4 s, What is the wheel's final...
Two painters are working on a platform hanging off the side of a building. The platform...
Two painters are working on a platform hanging off the side of a building. The platform is 10 meters long and supported by two cables. The painters are represented by vector forces in the free-body drawing below. The weights of the objects are: Platform 184 N, Sue 130 N, Jack 220 N. Calculate the force in each cable when the painters are in the position shown below(Case 1). To start, locate the pivot point where Cable 1 attached to the...
1- A force acting on a machine part is F = -4.5 i + 3.9 j...
1- A force acting on a machine part is F = -4.5 i + 3.9 j . The vector from the origin to the point where the force is applied is r = -0.59 i + 0.23 j. Calculate the magnitude of the vector torque, in N-m. Let a quantity along the positive axis be positive. 2-  The flywheel of an engine has moment of inertia 2.1 kg m2 about its rotation axis. What constant torque is required to bring it...
The fishing pole in the figure below makes an angle of 20.0° with the horizontal. What...
The fishing pole in the figure below makes an angle of 20.0° with the horizontal. What is the magnitude of the torque exerted by the fish about an axis perpendicular to the page and passing through the angler's hand if the fish pulls on the fishing line with a force = 122 N at an angle 37.0° below the horizontal? The force is applied at a point L = 1.94 m from the angler's hands
The conditions that the net external force and net external torque both vanish a. must hold...
The conditions that the net external force and net external torque both vanish a. must hold for a body in static equilibrium. b. are satisfied only when the torque is computed about the center of mass. c. must hold for every rigid body. d. must hold whenever the net internal forces and torques vanish. Two points are on a disk turning at a constant angular velocity about its center of mass. Point A is on the rim and point B...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT