Sol_Midterm1

Sol_Midterm1 - Problem An oscillating water sprinkler is...

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Problem l(I0pt) An oscillating water sprinkler is operated at A on the edge of a block. The sprinkler discharges water with an initial velocity us at oD angle / with the vertical. The maximum value of the angle 6 is do as shown below. We will determine the horizontal distances cl6 andd6,' which define the watered area. (a) Find the expression of dB in terms of us, fs, g. " 48' lt + voy ta o = o r Vurcs4, J {AB - an = -t , '.i I o D -\p -+-vAxTlir l!,,1 -alp = O -Voslh4o *U. 1*-- --- ) i I r \/' loln = a'o d^d rc cl I p q ta 'Yo l.J l- \ Ja )l I 2- ri- iFE t? 3 TPs (b) Assuming that it takes fa6r : 2 seconds from A to c, find the expression of d6,. :{r H t/ + ,At I Lf V. ehrJ .) ro d = al -.1- I I .i. =, I yo sr'E- i l'l rl i .l'r \^t f "h \{o i il 1r ,"r I 'r , I\r I t/5
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Problem 2 (10pt) There are two blocks A and, B sliding on floor. They are connected by an inextensible string and pulley as follows. r
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Sol_Midterm1 - Problem An oscillating water sprinkler is...

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