- #1

- 310

- 1

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter goldfish9776
- Start date

- #1

- 310

- 1

- #2

- 36,422

- 6,952

Are you referring to the 15kNm moment that is applied? You don't multiply that by a distance. (It would give you something with units kNm## Homework Statement

Why the moment isn't=15* 3Nm? Since we are taking moment about point O...it's 3m away from O

## Homework Equations

## The Attempt at a Solution

- #3

- 310

- 1

ya , i knew that . But , how can be moment be applied? only force can be applied , right?Are you referring to the 15kNm moment that is applied? You don't multiply that by a distance. (It would give you something with units kNm^{2}.) a force times a perpendicular distance gives a moment, but an applied moment is already a moment. Exactly where it is applied makes no difference, only its magnitude and direction matter.

- #4

- 36,422

- 6,952

Are you asking as a practical matter how it is possible to apply a moment as opposed to a force? There does not need to be a way to do that. Consider turning a nut using a spanner. One can think of it as applying a torque, or as applying two equal and opposite forces along parallel but different lines of action. If you are told a moment of some specified magnitude and direction is applied, you do not need to care about how it is applied.ya , i knew that . But , how can be moment be applied? only force can be applied , right?

- #5

- 310

- 1

yes, this will only occur in the exercise , but not in daily life ?Are you asking as a practical matter how it is possible to apply a moment as opposed to a force? There does not need to be a way to do that. Consider turning a nut using a spanner. One can think of it as applying a torque, or as applying two equal and opposite forces along parallel but different lines of action. If you are told a moment of some specified magnitude and direction is applied, you do not need to care about how it is applied.

- #6

- 36,422

- 6,952

I cannot think of a way to apply a torque to an object (in an inertial frame) other than by a combination of linear forces.yes, this will only occur in the exercise , but not in daily life ?

Share: