! AP Physics I Motion Introduction Worksheet 2014-15 I1) An object initially -4m/s2 for 2 seconds. 400 meters from a house is moving at +20 m/s decelerates at a) What is the objects final position from the house at the end of those 2 seconds? DOdÿ ::. ÿ);,' </ [ÿ'ÿ J ÿ 42ÿL • Posf dÿt/OL2::ÿo: olg, cÿ ÿi) ÿ Want Know Equation Posi= 400 m Vf = Vÿ + at :ÿ,,,Z/,:,;ÿ.'b --, Vi=2Om/s Vf2 Vi2+2a(Posf-Posi) + : ,ÿ _ a = -4 m/s2 "ÿ0 :q ¢ f 4'@ÿ:q 4ÿ- ÿ" 0/44 ÿ ., t = 2 sec [ Posf = Posi +Vit + (1/2)at2 ÿ, b) What is tÿe oÿ6jÿ&ÿY0dÿy at the end of those 2 seconds? r Want Vf Know ................ Equation Pÿqÿ" Vr = Vi + atÿ iÿi.:ÿ::::-;' .................................. '%:',' ÿ/ÿ-21;2&a(Posf- PosO p:: V,/ Posf = Posi +Vit+ (1/2)at2 "', 4. Z., @:4,. ,/00 2) An arrow was fired straigh}upwith a speed of'196 m/s, and has a acceleration of - 9.8 ms/s. " ......................... ) V&/ o: / c? d :]2¢ a) How much time will it take for the an'ow to reach its maximum height? (Hint, Vf = 0m/s) Want Know _--ÿ Equation "44 <v,= v!.+ÿt C:b . tÿ Posf +Vit + (1/2)at2 (Vÿ{., Vf2 = = Posi Vi2 +2a(Posr - Posi) b) What is the height the arrow reaches in that time? I/, J / gf Want " Know V4 Equation Vf = Vi + 'at $::/. " Vÿÿ = Viÿ +2a(Posr- Posi) &ÿ: Posf = Posi +Vit + (1/2)at2:ÿ.,, + : ' :, - ¢ÿ/'>> Name: AP Physics 1 Accelerated Motion Introduction Worksheet 2014-15 ? 3) A ball was dropped of the side of a building 4 seconds later the ball hit the ground. a) How tall was the building? : fc, y, ¢ ÿ' ÿ "[email protected] 'ÿ2 ÿ ÿ"ÿ¢.ÿ)Want Equation Know b) With what SPEED did the lJ511ÿNt}he 0 Want Know ,,ÿ Equation . . 4) A cai} driving at 5 m/s sees a Snoopy for sale sign and speed'ulÿto 10m/s in a distance of 2 mÿters. What i's the car's acceleration? Want I a__. -- Know Equation Vc 4-g "/ reference marker. The motion of the person 5) A person is graphed below. "'"'ÿ'"v.'"':""{'"':."'°'''''£'''I''-'-'F''''''''''''!''''''''':''''F'''''''v."''''''7'''?'''''T''Y'''?''''ÿ'''':.'''ÿ''''F''" i....i...!....i....i....H....H...H....i .... v,..,,,=o .... HHi i::::{:[i Velocity :i::1ÿÿ H...i (=ÿs), ,i..ÿ!2.ÿ Hi,,.s...,.HH,..HH..,HI..-p iiHhHHI ÿ ÿ '"ÿÿ"ÿ":"" "ÿ""='"ÿ'""ÿÿ==ÿ LLLLLLLLLL,,i i....i.....-.....i....i....-.:...i....i....hi....ÿ=,p t..,prm,,l....pl..-:.,,!..rh.p.<,!,.,,h<.i....h<,p.{ "-."-ÿ'"'."".""?'".'"'."'?'".'"'!U?" ÿÿ '?"".:'"'.'"'?'"9"'!'-'? L..'..``...ÿ`i.`..t....'`ÿ...i..'M.:ÿ....i...:ÿ.ÿ'iJ.`... :"' ÿ :ÿ.ÿ..:`..IM'ÿ.. ,.,,..:...,ÿ,, " ...... ,. } a) What is the person's acceleration between 0 and 4 seconds? /4' i4, ?, ,-q. ,L b) Where is the person's final positionTi:6m the marker. ,ÿ.,ÿ ÿ!" , ..... ,= ! d Name: AP Physics 1 Accelerated Motion Introduction Worksheet 2014-15 6) A car traveling at 2 rn/s speeds up to a speed of 12 m/s in a time of 10 Seconds. , / What is the car's displacement? z.ÿ-ÿ: ) blÿo.d dÿ,<:ÿc. ÿ-.;ÿ"ÿ' (-'b,lÿoÿ.ÿV.ÿ (i,-ÿ-ÿnc,.. ÿ7-/ | l'6h I ÿ') ,2" . 7) A car from REST accelerates at a constant rate until it reaches a speed, of 6 ntis. Ifÿ_/ÿ;!! .fO,.ÿ] it does this is a distance of 10 meters, how much time does it take for the car to reach 6 m/s? d ÿ" "ÿ! ::ÿ-. @ \dl :: O, -ÿ '<;J "d ÿ I x.,_;.,; %') t: =ÿ C) aÿ./lo ÿo, ..__. i 8) A person fi'om rest lÿJns with a constant accelera ion for 30 seconds traveling 120 meters. What is the person's final velocity? (ÿ;',,,. ÿ1 J 'ÿ £. ' -7 V.'ÿ ÿ .-'! ÿ:" z D{ : ,h \ . /'o4ÿ, Wÿro 9) An object initially moving at 2 m!s accelerates at a graphed as shoÿ? ................................................ , 275 m SLÿ - ........... a..../W 5m t..g __ ,ÿ_....-.-ÿ I 0 see 10 sec a) What is the acceleration of the object? ;', ; ,i .... ÿ" ÿ' 2:. ÿ! °" -" 2 ' b) What is the final velocity ?;v!'(, -.- ;<' "7 ....... •.7" J. { . , .2,2 ( U/o,-) e .... ÿ:cVil ..... Name: AP Physics 1 Accelerated Motion Introduction Worksheet 2014-15 c) What is the average velocity for the 10 seconds? ,< Ii ÿC,,J ii ///ÿ/ J