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?hqg \Yb p,rd'ft\w. \ Wo2 f !. D-' Yodff r '", \, ufji' odr-*-s).p-- Ff' r3 You decide to walk across the Diag from A to B along the solid path shown t at right. Your friend leaves A at the Jt. samJ time you do; but follows the dotted f \l ,Fts'' path. If you walk at 1.8 m/s, how fast , # - i' Yod I I should your friend walk to arrive at B at , UnlSl I the sanre tlme you do? " .- I -hi '!; =\ o'Wff i d' mg Same Ume yOU OOt ' t' I 4; 'i . -,-: ' ,tyf I' u :il\-\cp, u roA rD Mff i aJ ,; (,,r*l ) offi-**f*j d1 ,,a, _ep.e ,."6-.ffii Jdtt(#,tr1*A \,? t\$].,*..'^rbfri."'1't (rt \'..;-'*rr"' n|rlLts * s' J *_ r \, u. f-- h d s" Ft <---a\ t c{t/ \, ^,^ u , \ ;: d5.i \ ,, -t"A-r 2. An airplane releases a box of supplies while flying horizontally at constant velocity. The box is released from rest relative to the plane. Neglecting air resistalce, where does the box Vn= cl=an1j A) Behind the plane. B) In front of the plane. F(lt depends on the height from which the package was dropped. p{t depends on the speed of the plane. p) pirectly below the plane. w GO ON TO TIIE NEXT PAGE

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'l 3. Consider the following statements about the projectile whose trajectory is shown at c right. Air resistance is negligible. r m I. The speed at B is the same as the speed at D. l-'/ 40 X1 fne acceleration is zero at C. III. The acceleration is negative at A and s positive at E. ,/.. zo IV. The time to go from A to C is the sameas the time to go from C to E. U./-' 10 Which statements are true? o f* x (m) @ fiiyU, and IV B) I and IV C) II and III D) II and IV E) I, 11, 11I, and IV l t Gl+. you are a passenger on a ferry boat that is crossing a lake at speed \aoaF4.4 m/s. You decide V to walk directly across the deck at speed vyou=l.9 m/s, as shown below: -/\ f a l (i,w ' l r \ r,k{/f Ev I I \ 17 -YlW | | v-.^.. \ f boat mw I | 'vou > I > w I I r ) - - T r - T ' - r Yz I i \l^n ,/ t'"ln!J 0 What is your speed relative to a person standing on the shore?
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