g- - t Look at IMD D •
g--
t
Look at IMD
D•
O
O
- -70p produce enough moment→
to life up w .
① fefmax --Ms -N
-0O-
Tip first ? or slip first ?
←Recommend
→D= by
→ f -- Ms .N
f- ⇐
-R
=
→ cheek if f Efmax
If
Sin0=0.6 Aso = 0.8
choose the gtipping point
,fB to
→ f NA - w . Gso = o. 8 W
fa = W . SinO - P -- O. 4 W L Ms - NA- o . 48 w
↳ Ng =p - wsinot 'zw Gso = - 0.08 W
- -
width into the page
÷:::*: .no." "
i:*Teg -- I fpwgh) .h① =3 heh
'
/Wi ' Pc -g. 4. d.④ = zoo lbs
'Sb
Wi- pig . ( 'z b - d.④ = 150 lbs
a) Assume tippingEeg, f
EMA =o : Wi ( 1,5) t WL ( } ) - Eeg - ¥=o N{ Fey = 31.2K
⇒ h = 3.75 ftt
metf¥?YZfx=o : f = feg = 438.75 lb
ZFy=o : he w , + WE 450lb
⇒ f 7 Imax -
-Ms.tv/.=sslipsir#
b, assume slipping : ⇒ if --NswEeg,
fFey = 31 .2h'
Efx '- o '. Eeg = f -- Ms . N
I Fy=o : N-nw.tw , = 450 lb
⇒ h; 2- 94 ft
hs s he ⇒ Slip first
ykrtnemt.no?o?.oheckEo#y- Eeg ' hz t w, ( I. s> +WI E) - N . I ⇒
⇒ I >o
⇒ slip first1-I
-Quiz