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19. Slipping and Tipping

# 19. Slipping and Tipping - ME 270 Basic Mechaniw I Group...

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Unformatted text preview: ME 270 - Basic Mechaniw I - Group Quiz Name/Group #: —_ Group Members: l) __ 2) Date: __ Period: ______ 3) __ 4) Given: A 30 kg crate is setting on a ﬂat surface as shown. The coefﬁcient of friction between the box and the surface is u, = 0.25 and at = 60°. Find: (a) Determine the minimum force T necessary to cause impending motion of the crate. Is the impending motion tipping or slipping? Justify your answer. (b) If the crate were to slip ﬁrst, how could at be varied to cause tipping. (c) If the crate were to slip ﬁrst, how could us be varied to cause tipping? Solution: (of) Tlssuma IM PENDIﬂg Tag/m, ”I; -N «A 7A ad- ¢+ 79/71:»? edge ' 765‘ 7cmAx Z Mo= o = 0.4 (pasta) +0.7(7r’5m66)~0.45‘{W) N 0.7m 4. am ...
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19. Slipping and Tipping - ME 270 Basic Mechaniw I Group...

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