Question

Hi am stuck on this problem if i could get some assistance. Thanks

A What is the center of gravity relative to the pivot point A in the horizontal direction only. Not including the guide rod
B Sketch a free body diagram for the lever showing all force that act on it . If the lever is made of steel density 7000 kg / m3 what force in the spring needed to hold the lever horizontal when the guide rod weight 20 N rests on the semi circular end piece of the lever.

GUIDE ROD -WEIGHT (20 N) 250 Uniformthickness 15mm CN 40 600

Answer 1

6uide tod 19 LD 4rb (Take Point A as ovigin) Lel us con e -fiqure can lbe diviàd in toa,semcsle, redenlk ane le, rechen and cndde as the boda has uni-forn thickness Cent"id of frgune= lener Centeid of hole A at lhe o stsel- Cenhroid o-f Aoke- Co,o) Area of hok - Aに615.75mm of vectavgb nes at Center of Testeangh distanca of Cenberd of semiurcla fom Pain AsR+s 10 m m

Arcaa/ -total -fig we= Aath-AI: 3boot 3426.qo- 40-61S. 76 6311 240 χ-440 . a 14 mm Distante of Lentes of gravy om PointA is 44-0-0i Area o Body631 .240 mm2 weigh mass x acceleion weight of from Ponk A 'ste at 20N Ry CRentibns at Pivot 千4dAHmm ТО maintain Body in eatwiliby(um

mowent about Poin+ A-o Fsmn52-25N Cc neccle