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Quiz 12

# Quiz 12 - QUIZ 12a A man tries tomove a crate by'pulling on...

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Unformatted text preview: QUIZ - 12a A man tries tomove a crate by'pulling on it with a horizontal force P. Assume that the weight of the crate acting at its centre of gravity 6 is Wm :- 100 lb. weight of the man is Wu... 8 150 lb and the coefﬁcients of static friction between the crate and ﬂoor ls m- 0.8, and between the man's shoes and the ﬂoor is us: 0.95. Determine whether the man can move the crate or not. If he can, does the crate slip or tip? Specw clearly all the cases of impending motion and show all steps used 1‘ determining P. @ {4MM ﬂm are Mt W%WL 9W,“ Wif/v WM it.» .11 mm 2'; g . 47cm Ma mwt mm We, far-F- 0) Mm ski/>3; (9 Cute 552/8 .6) amt/9. W’s “W3. (”Q +2£M0r~ ' 21°01") #0 ”MW MOTWWMW an and? W We». Pt «L3; 1:. é. @ +2951; =~P(3-s)+%,,w(/-s):0 :> p: 42-37%! «hm-aw), ' W, M we Cow W. IMW'J:% my“ “(MI for lam ’0 ”'5 ﬁPP‘b‘?’ c cat-5 3 ) o erf let-x7“ 4 Meta Can wove f'Ae. CKNJE Actuate (5%“ ice-rum“). p ﬁr :‘mpmJn;Z Mahlﬁn QUIZ — 12h ’ A man tries to move a crate by pulling on it with a horizontal force P. Assume that the weight of. the crate acting at its centre of gravity G is Wm 4: 100 lb, weight of the man is We... = 150'“) and the coefﬁcients of static friction between the crate and ﬂoor is my: 0.8, and between the man's shoes and the ﬂoor is pm: 0.95. Determine whether the man can move the crate or- not. If he can, does the crate slip or tip? Speciﬁw clearly all the cases of impending motion and show all steps used in determining P. <— @tdwaz 119075710 W m M W“ Wee meme 0ch We; Fr "a,” 1k” @ 4221MB: "P(3-5)+Wem(’v) 5—0 9”: 5’7./%6<&, W,ﬂJ3Me MW. IMM.y_ 4401‘va oar'j’ ﬂy [Gk—’15"; P "’9‘ rip/91L?» (ain’t: 3) OCWJ Hue We £eﬂ=u441 (/5 femur cf Mn cm WWVL ...
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Quiz 12 - QUIZ 12a A man tries tomove a crate by'pulling on...

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