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free fall vectors fall 10

# free fall vectors fall 10 - Physics 221 l Free-Fall and...

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Unformatted text preview: Physics 221 l. Free-Fall and Vectors Seminar From the top of a very high cliff, a person uses a slingshot to ﬁre a pebble straight downward. The initial speed of the pebble is v’. (a) What is the acceleration of the pebble during the downward motion? 15 the pebble accelerating? Explain. (b) At time 1’, how far beneath the cliff-top is the pebble? An armadillo makes four jumps. The displacement vectors are: (1) 27.0 cm due west (2) 23.0 cm, 35.00 south of west (3) 28.0 cm, 550° south of cast (4) 35.0 cm, 63.0° north of east Find the magnitude and direction of the resultant displacement. Use the component method and show all work. An arrow is ﬁred from ground level straight upward with an initial speed or. How long is the arrow in the air before it strikes the ground? A ball is thrown straight upward and rises to a maximum height /7’ above its launch point. At what height above its launch point has the speed of the ball decreased to one-halfofits initial value? a \ :9 ‘l/Ul L34, g9 WA Nap-0' 0v=g ski/Xe 4’ We wing [W mm] M1: +IQZQ(;£(>Z ’XI 1 MW) 4’ (9)7, yongoNQg kph" Iva/16w \Neﬁvm’f M ' Noméamn do 014%“ (H v- 27 0m O m m - 2770m (009 3’15") —- 2376mm (6m €593 (2,) + 25am (00999”) - 26cm (CAM 55°) L4) Jr 77mm (we (422°) + 756% (W (07205 @mﬁ, ('0 .. 27 0m 0 cm W ~—1&64 0m " {a 20m (’67 +\Cp.0(d cm - 22.94% C4) + \S.®om + 3LZOM R .— {666% *494000 \ \ EQJC ; 04 JD: 2m 6 Tin/Lt? C7? PMWT @ <"\f\\ 3 WC m G) WNW Irv \JL’ £6 .wwm‘tgﬂu'g Speed 19% f 3 69M Md ' V \QOéQWm/x MEMO 1%: M54): +20% N [am MN] 0 M7” Mf «» Z a (W6 ,_ >4 7 N010 M W MWgC N0 \\>\*¥0[M4 3 Qt? Moer MM- 565 [glam/am] @KRW M401 0 : Maﬁa/ppm I 0) Mi: 26H ...
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