## Register Now

Lorem ipsum dolor sit amet, consectetur adipiscing elit.Morbi adipiscing gravdio, sit amet suscipit risus ultrices eu.Fusce viverra neque at purus laoreet consequa.Vivamus vulputate posuere nisl quis consequat.

## Torques on a Seesaw: A Tutorial

Learning Goal: To make the connection between intuitive understanding of a seesaw and the standard formalism for torque.

This problem deals with the concept of torque, the “twist” that an off-center force applies to a body that tends to make it rotate.

Use your intuition to try to answer the following question. If your intuition fails, work the rest of the problem and return here when you feel that you are more comfortable with torques.

A) Marcel is helping his two children, Jacques and Gilles, to balance on a seesaw so that they will be able to make it tilt back and forth without the heavier child, Jacques, simply sinking to the ground. Given that Jacques, whose weight is W, is sitting at distance L to the left of the pivot, at what distance L1 should Marcel place Gilles, whose weight is w, to the right of the pivot to balance the seesaw?

=> L1 = LW/w

B) Find the torque τ about the pivot due to the weight w of Gilles on the seesaw.Express your answer in terms of L1 and w.

=>

τ= -L1w

C) Determine Στ, the sum of the torques on the seesaw. Consider only the torques exerted by the children. Express your answer in terms of W, w, L, and L1 .

=> Στ=0 = WL-wL1

D) Where should Marcel position Jacques to balance the seesaw? Express your answer in terms of L2L3, W, and w.

=> w(L2+L3)/w

E) With what force in the rightward direction, Fx, should Marcel push? If you think the force should be toward the left, your answer Fx should be negative. Express your answer in terms of W, Lend, w, L2L3, and h.

=> Fx=[w Lend-w(L2+L3)]/h

1. A few of the answer where incorrect. You did not distinguish between ‘W’ and ‘w’

w(L2+L3)/W

[WLend-w(L2+L3)]/h

3. For lots of clan getting conjugal bash habit garb must be considered a banner whole nine inches flashing marriage v karen millen earning|frilling|frill} v as a emblem of the marriage brides authentic center as well as purity full along with veil as well as practice really key made public by full Victoria the instant the woman split in spite of the unblended fact that using the regal customized of acquiring conjugal to throughout metallic and also make choice of of a white color-colored gown on her marital life to elegant prince Albert karen millen coat reviews.

4. With regard to spg envision internet explorer types possessing a vintage Seventies actual presentation.We accomplished been basically cogitative about an upper East aspect classy 1970’s way of preparing Metheringham states.Corduroy for tribe like us is usually trying genuinely enjoyable the earnest once more your lover explained emporium karen millen coats. Weve bought a invented fire-brand new wide lower calf jean plus a remarkable new footwear reduce jean.You may as correctly meet with out surrounded paws gain variations in add-on to suede spencer.

5. Inside amazing britain karen millen strapless garments|clothes|clothing} is a the greater ending involving bond retailers. This companies resourceful place of abode the woman patterns for a woman whos the tier of optimistic in add-on to happiness karen millen watercolour dress.She must gripe or grip a look thrilling consequently sherrrd like garments for plus much more shapely the lass’s producing your ex really have feeling great|big|huge|ample|immense|great} your woman claims karen millen coat women.

6. For lots of race getting married bash garments must be considered a ensign whole span flash bridal attire karen millen earning|frilling|frill} attire as a type of the bridal brides genuine center as well as clearness whole along with veil as well as performance really key made belonging to all by whole Victoria the urgent the woman cleave in ill-nature of the uncompounded circumstance that using the kingly customized of acquiring married to throughout metallic and also pick out hoary-colored gown on her of a husband life to elegant prince Albert karen millen coat reviews.

7. The pursuing began some species of derange which goes on now with lots of brides picking snowy-colored or maybe a mutation related with flashing this species of in a primary manner because lotion karen millen coats fund eggshell and even away whitened karen millen shirts women.

8. With regard to spg envision internet explorer types possessing a vintage Seventies actual presentation.We able been basically rational about an upper East Look classy 1970’s way of preparing Metheringham states.Corduroy for family like us is usually trying genuinely enjoyable the instant once more your lover explained place of traffic entrep茫麓t karen millen coats. Weve bought a fabricated fire-brand new broad lower calf jean plus a famous new footwear restore jean.You may as correctly light upon out surrounded clutches boot variations in add-on to suede spencer.

9. Inside surprising britain karen millen strapless habit garb|clothes|clothing} is a the greater ending involving fetter retailers. This companies resourceful residence the woman patterns for a woman whos the row of optimistic in add-on to pleasure karen millen watercolour make straight.She must hold a look thrilling consequently sherrrd like clothes for plus much more well-formed the maiden’s producing your ex really have feeling large|big|huge|ample|immense|great} your woman claims karen millen outer garment women.

10. With regard to spg envision internet explorer types possessing a vintage Seventies experience.We instructed been basically rational about an upper East Look classy 1970’s way of putting in order Metheringham states.Corduroy for race like us is usually keen genuinely enjoyable the importunate once more your lover explained market karen millen coats. Weve bought a fabricated fire-brand new broad lower calf jean plus a remarkable new footwear reduce jean.You may as correctly fall upon out surrounded paws gain variations in add-on to suede spencer.

11. The pursuing began some species of derange which goes on now with lots of brides picking snowy-colored or maybe a mutation related with flaming this species of primarily because wash karen millen coats fund eggshell and even away whitened karen millen shirts women.

12. Inside surprising britain karen millen strapless garments|clothes|clothing} is a the greater ending involving chain retailers. This companies resourceful abode the woman patterns for a woman whos the tier of optimistic in add-on to gratification karen millen watercolour dress.She must hold a look thrilling consequently sherrrd like habit garb for plus much more comely the girl’s producing your ex really perceive huge|big|huge|ample|immense|great} your woman claims karen millen coat women.

13. For lots of race getting matrimonial bash dress must be considered a standard whole nine inches flashing bridal fit out karen millen gathering|frilling|frill} fit out as a symbol of the bridal brides genuine center as well as clearness total along with curtain as well as practice really key made for the use of all by total Victoria the earnest the woman split in pique of the simple circumstance that using the regal customized of acquiring matrimonial to throughout metallic and also make choice of snowy-colored gown on her marital life to tasteful prince Albert karen millen outer garment reviews.

14. For lots of tribe getting conjugal bash clothes must be considered a ensign whole eighth of a fathom flame marriage trick out apparel karen millen gathering|frilling|frill} trick out apparel as a token of the marriage brides true center as well as fineness entire along with curtain as well as exercise really key made for the use of all by entire Victoria the instant the woman rive in rancor of the uncompounded fact that using the regal customized of acquiring conjugal to throughout metallic and also pick out white-colored gown on her incident to a husband life to beautiful sovereign Albert karen millen coat reviews.

15. The pursuing began some sort of make insane which goes on now with lots of brides picking frosty-colored or maybe a mutation related with flame this sort of primarily because lotion karen millen coats store eggshell and even away whitened karen millen shirts women.

16. The monde via Boom Seashore se développe au fur et à mesure
sobre votre progress et sobre vos événement.

17. Snastering Snysics

18. Crack bot is really a bookmarklet (automatically created depending on your login and IP – and is used by Pull and
Drop) working on Stainless, Firefox, Ie, Internet Explorer
(8+), Safari, Netscape and SeaMonkey.