Date E. Burns .. A football is kicked at an angle 0 with respect to the ...
Date E. Burns .. A football is kicked at an angle 0 with respect to the ...
Date E. Burns .. A football is kicked at an angle 0 with respect to the ...
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NamePeriod2-D Motion.Test 2010 ........ Honors PhysicsPart A Multiple ChoicePlace your <strong>an</strong>swers on <strong>the</strong> Sc<strong>an</strong>tron sheet provided.<strong>D<strong>at</strong>e</strong>E. <strong>Burns</strong> ..Page !A <strong>football</strong> <strong>is</strong> <strong>kicked</strong> <strong>at</strong> <strong>an</strong> <strong>an</strong>gle 0 <strong>with</strong> <strong>respect</strong> <strong>to</strong> <strong>the</strong> horizontal. Which one of <strong>the</strong> following st<strong>at</strong>ements bestdescribes <strong>the</strong> net acceler<strong>at</strong>ion of <strong>the</strong> <strong>football</strong> during th<strong>is</strong> event if air res<strong>is</strong>t<strong>an</strong>ce <strong>is</strong> neglected?a. The acceler<strong>at</strong>ion <strong>is</strong> 0 m/s2 <strong>at</strong> all times.
The following graphs represent <strong>the</strong> position versus time of <strong>an</strong> object.Page 2Graph I Graph II Graph III Graph IV Graph Vddt t t t tThe position-time graph th<strong>at</strong> best describes th~ of a footh al! <strong>kicked</strong> for a field goal <strong>is</strong>a graph I b. graph II ~ d. graph IV e. graph VThe following graphs represent <strong>the</strong> velocity versus time of <strong>an</strong> object.Graph I Graph II Graph III Graph IV Graph VvV7. The velocity-time graph ~a_~t besk ~d_e~,ibes <strong>the</strong> vertical motion of a <strong>football</strong> <strong>kicked</strong> for a field goal <strong>is</strong>s. graph I ~ c. graph III d. graph IV e. graph V8. Vec<strong>to</strong>r A <strong>is</strong> North <strong>an</strong>d Vec<strong>to</strong>r B <strong>is</strong> East. IfB <strong>is</strong> subtracted from A, wh<strong>at</strong> <strong>is</strong> <strong>the</strong> direction of <strong>the</strong> result<strong>an</strong>t?a. Sou<strong>the</strong>astb. Nor<strong>the</strong>astD - ~Southwestq÷
Complete ANY3 problems Show AL___~L work Eaeh problem <strong>is</strong> worth 25points. (3 x 25 = 75points).Page 3PROBLEM #1During <strong>the</strong> World Series, Texas nearly <strong>to</strong>ok <strong>the</strong> lead in <strong>the</strong> <strong>to</strong>p of <strong>the</strong> fifth inning when I<strong>an</strong> Kinsler hit a 122 mlong drive <strong>to</strong> center field th<strong>at</strong> looked like it would be a home run, but bounced off <strong>the</strong> very <strong>to</strong>p of <strong>the</strong> 4-m highwall <strong>an</strong>d back in<strong>to</strong> <strong>the</strong> ballpark for a double. Assume th<strong>at</strong> <strong>the</strong> ball <strong>is</strong> hit <strong>at</strong> wa<strong>is</strong>t height (about 1 m) <strong>an</strong>d ignore<strong>the</strong> effects of air on <strong>the</strong> ball’s travel.a) Wh<strong>at</strong> was <strong>the</strong> velocity of <strong>the</strong> ball when it left <strong>the</strong> b<strong>at</strong>, if hit <strong>at</strong> 38° above <strong>the</strong> horizontal?b) Wh<strong>at</strong> was <strong>the</strong> maximum height of <strong>the</strong> ball?c) How far away (horizor~Nlly) ~o_m_<strong>the</strong> b<strong>at</strong>ter did <strong>the</strong> ba!l reach maximum height?5:
PROBLEM #2An airpl<strong>an</strong>e flying 327 mph heads 16° SW. A crosswind buffets <strong>the</strong> pl<strong>an</strong>e <strong>at</strong> 75 mph, directed 57° West ofNorth.a) Wh<strong>at</strong> <strong>is</strong> <strong>the</strong> result<strong>an</strong>t velocity of <strong>the</strong> pl<strong>an</strong>e?b) How much far<strong>the</strong>r does <strong>the</strong> pl<strong>an</strong>e go in 30 minutes (assuming <strong>the</strong> wind speed <strong>is</strong> const<strong>an</strong>t) ?Page 4
PROBLEM #3,Prior <strong>to</strong> becoming a teacher, Mr. DeMarra<strong>is</strong> was -WWF wrestler..In one m<strong>at</strong>ch, DeMarra<strong>is</strong> lifted h<strong>is</strong> opponent,.The Elimin<strong>at</strong>or, over h<strong>is</strong> head, <strong>an</strong>d threw him horizontally. The Elimin<strong>at</strong>or l<strong>an</strong>ded in <strong>the</strong> audience bleachers, 3meters away <strong>an</strong>d 2.25 m lower th<strong>an</strong> <strong>the</strong> ring. Assume Mr. D <strong>is</strong> 6’ 2" tall.a) With wh<strong>at</strong> speed did Mr. D throw The Elimin<strong>at</strong>or?(~"~ = {7~ Iq @4b) Wh<strong>at</strong> <strong>is</strong> <strong>the</strong> Elimin<strong>at</strong>or’s velocity 0.25 seconds after becoming airborne?c) Wh<strong>at</strong> do you think would be a good WWF name for Mr. DeMarra<strong>is</strong>?Page 5
PROBLEM #4A boy throws a.ball horizontally <strong>at</strong> a speed.of 6 m/s, from.<strong>the</strong> <strong>to</strong>p.of,a 110-m high cliff <strong>to</strong> h<strong>is</strong> friend, who <strong>is</strong> ..st<strong>an</strong>ding 50-m from <strong>the</strong> base of <strong>the</strong> cliff. Assume <strong>the</strong> ball <strong>is</strong> thrown <strong>at</strong> <strong>the</strong> same time <strong>the</strong> boy on <strong>the</strong> groundbegins <strong>to</strong> run.a) The boy on <strong>the</strong> ground runs <strong>with</strong> <strong>an</strong> average speed of 3.75 m/s. In order <strong>to</strong> just c<strong>at</strong>ch <strong>the</strong> ball <strong>at</strong> groundlevel, how <strong>to</strong>ng did h<strong>is</strong> friend have <strong>to</strong> delay thi-owing <strong>the</strong> ball?b) Sketch a graph of horizontal d<strong>is</strong>t<strong>an</strong>ce vs. time, Include lines for both <strong>the</strong> ball <strong>an</strong>d for <strong>the</strong> c<strong>at</strong>cher, clearlyshowing <strong>the</strong> point when <strong>the</strong> ball <strong>is</strong> caught. Th<strong>is</strong> does not have <strong>to</strong> be <strong>to</strong> scale, but please label <strong>the</strong> point ofintersection <strong>with</strong> <strong>the</strong> correct values, <strong>an</strong>d correctly shape <strong>the</strong> lines.Pagel’.
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