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Homework #21

# Homework #21 - Key[7.5 The angular velocity of tha left...

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Unformatted text preview: Key [7.5 The angular velocity of tha left disk is given as a ﬁmction of time by m = 4 4- G2: mall‘s. {a}Wl1at are the angular velocities a); and mg 3115 s? {b} Through what angle does the right disk turn from r= {l to r= —5 s? j._;.-._“-_ A95“? Mfm hut—f— ‘5’ ‘W'v ﬁr s’l‘r-a'linlj negwécf Ag- rm t‘Km MM [0.2”- acre-Hui: 1120 The bar is rotating in the counterclockwise direction with angular velocity or. The magnitude of the velocity of point A relative to point B is 6 Inn's. Determine the velocity of point B. 17.23 If the angular velocity of'the bar is constant, what are the: and 3; components ofthe velocityr of point A {1-1 s after the instant shown? 1'? ST The length of the be: Is L= 4 ft and the angle 8= 30" The ber’ s angular velocity' is m= 1.3 mile and its angular eeeeleration' Is e= ﬁ rada's. The endpoints of the bar slide on the plane surfaces Determine the acceleration. of the midpoint G. Gill-3'3“. a) we £43 M-‘f‘ Mot—G" 56f?! :puf Want-2.: Lelia-g mm m '5‘ accefﬁrzm Ufa-Hug? w—Q Mug/"€— aﬂi‘ WIRES nun/yer: Ltry‘la‘ in Ta; "I" a " FA/e ’ ”Live 9.3:? all“ = -615.) +(Q,%(Z?-346?3>-(Lg)(zf_g%4ﬁ) ...
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Homework #21 - Key[7.5 The angular velocity of tha left...

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