2x Travel
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 NEW NWT Authentic Vera Bradley Folkloric Garment Bag Travel Tote  US $85.00
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 Damask luggage set 3 piece set black scrolling New suit case suitcase NWT US $40.00
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 Embassy 3Pc Leather Duffle Bag Set Sports Travel Luggage US $69.89
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 Pacific Revolution Travel Bag with wheels US $39.99
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 Italian Stone 7pc Genuine Leather Travel Set US $59.99
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 Children kids Heart Design 2pc Luggage Travel Vacation Set Fun Value Priced Set US $20.94
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 BLACK GENUINE LEATHER Trolley Rolling CARRY ON LUGGAGE Backpack US $29.95
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 7pc Genuine Leather Black Travel Bags New Luggage Tote Bag Set New US $52.95
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 3 Pc Genuine Leather Duffle Trolley Rolling Travel Deluxe Luggage Bag Set NWT US $85.95
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 41 1 2 BLACK LEATHER CARRY ON TRAVEL FOLDOVER GARMENT BAG SUITS AND OR DRESSES US $165.00
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 3pc Motorcycle Gear Bag Set Barrel Tool Sissy Bar Backpack $14795 Value US $43.95
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 Briggs and Riley 22 Garment Bag US $95.00
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 NWT Vera Bradley Large Duffel Large Cosmetic Java Blue rare Made in the USA US $99.99
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 Black Under Seat Rolling Carry On Luggage Travel Bag Ballistic nylon case US $39.99
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 BLUE SAMSONITE LUGGAGE MAKE UP JEWELRY TRAIN CASE TRAVEL STORAGE US $25.00
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 7pc Genuine Leather Black Travel Bags New Luggage Bag Set US $52.95
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 BUGATCHI BLACK GENUINE NAPPA LEATHER WEEKENDER TRAVEL BAG US $129.99
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 InFocus Porter Case Heavy Duty Travel Case for LP750 w Combination Lock US $39.99
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 NEW 21943 LUXURIOUS LUGGAGE SET US $147.85
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 NEW 12930 STYLISH SKULL LUGGAGE TRIO US $147.85
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 Vtg 1940s Hardside TRAIN Airplane Vanity Carry On Leather Look Travel Case VGC US $8.99
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 New Travel Gear Faux Leather Trolley Cart Backpack Carry On Tote Bag $96 Value US $32.25
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 2x LEATHER PASSPORT HOLDER Neck Pouch TRAVEL Black US $18.89
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 TravelPro MaxLite 15 Wheeled Computer Case Carry On Luggage Suitcase Bag NICE US $29.99
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 2x PASSPORT Leather ID Holder Neck Pouch Wallet TRAVEL US $17.85
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 Embassy 5pc Luggage Trolley Travel Set New US $89.99
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 NEW ExtremePak 39” Digital Camo Pattern Water Resistant Duffle Travel Bag US $30.79
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 New 19 Black Crocodile Embossed Genuine Leather Tote Bag Travel Luggage US $27.99
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 NEW Extreme Pak Water Repellent Digital Camo 23 Tote Travel Luggage Bag US $29.99
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 NEW 21 Black Genuine Buffalo Leather ToteLuggageTravel Bag w Shoulder strap US $23.99
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 4 pc Vintage Retro SKYWAY Checkered Colored Tweed Luggage Set US $175.00
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 Embassy 7pc Leather Travel Set US $75.00
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 Vintage Train Case Overnight Case Makeup Case U S Trunk Co US $26.00
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 7pc Black Leather Travel Luggage Set Rolling Duffle NEW US $84.75
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 VINTAGE 50s 60s AMERICAN TOUR Rockabilly MAKEUP TRAIN CASE CARRY ON TRAY Key US $34.99
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 TWO Dark Brown PASSPORT LeatherID Neck Pouch TRAVEL Wallet FREE SH US US $18.99
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 PACIFIC REVOLUTION TRAVEL BAG US $32.95
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 Large Black Travel Luggage Vacation Duffel Bag Gym Suitcase Shoulder Carry Strap US $29.97
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 T Anthony classic duffle Vintage leather tan brown carry on large luggage bag US $9.99
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 McKlein Walton 17 Double Compartment Laptop Case Blk $240 US $106.99
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 36887 Pacific Revolution Large Rolling Travel Bag US $19.95
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 2x PASSPORT Leather ID CARD Holder Neck Pouch Wallet US $18.99
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 VINTAGE Luggage Alexandra De Markoff Travel Case Radio US $379.99
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 2x TWO PASSPORT Leather ID Holder Neck Pouch TRAVEL TAN US $18.99
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 2PC LUGGAGE ROLLING SUITCASE TOTE BAG NEW GIRL HEART FLOWER SLEEPOVER TRAVEL SET US $29.89
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 Set 2 Vera Bradley LARGE SMALL DUFFEL BAG BOTANICA Luggage Used VGUC Travel US $124.99
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 4 Pc Luggage Set US $52.95
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 VINTAGE SAMSONITE ROUND HAT CASE WITH BROWN LEATHER STRAP US $12.50
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 Glaser Designs San Francisco soft sided leather ballistic nylon bag US $84.95
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 Travel Gear 24 Brown Faux Leather Tote Bag Carry On Over Night Bag Duffle US $36.49
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 Swiss Legend 22 Wheeled Garment Bag New W Tags in Original Box US $150.00
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 New Black Solid Leather Wallet Passport Cover ID Holder Credit Card Travel Case US $7.95
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 12930 Stylish Skull Crossbones Pattern Rolling Luggage Set Zippered Cases US $119.95
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 2 Vintage JC HIGGINS Fine Luggage Suitcases Well traveled Has Character US $69.99
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 MCKLEIN WEST TOWN 17 DETACHABLE LEATHER WHEELED BRIEFCASE S Series US $217.00
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 BUG OUT GEAR BUG OUT BAG Back Pack US $65.00
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 2pc Kids Luggage Set Great for TravelAn Overnight Visit to Grandma or Sleepover US $17.75
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 3 pc Quilted Travel Bag Set Black US $26.99
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 vintage unisex pierre cardin travel vanity carry on luggage handle zipper strap US $9.99
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 Computer Leather Laptop Notebook Travel Case Black Bag Sony Toshiba Dell Samsung US $9.95
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 New Black Leather US Passport Cover ID Holder Wallet Credit Card Travel Case US $6.95
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 3 PC TRAVEL LUGGAGE SET SIZE AIRLINE APPROVED FOR CARRY ON duffle bag train case US $17.99
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 SwissGear Travel bag SW5014 NEW US $9.99
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 SAMSONITE SILHOUETTE 4 1987 BLACK W WHEELS US $35.00
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 VINTAGE TRAVEL FLORAL SHOE BAG BOX US $12.00
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 MOUNT ROYAL Axiom Travel Series PANNIER Black Bike Rack BAG Storage US $14.99
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 511 Small Kit Bag Black US $35.00
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 LUGGAGE US $3.99
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 3PC BLACK QUILTED TRAVEL LUGGAGE BAG SET DUFFEL TOTE COSMETICS MAKE UP CASE US $21.95
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 3 Piece Buffalo Leather Motorcycle Biker Travel Bag Set US $59.95
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 4 Piece Set 4 Wheel Spinner Luggage Rolling Case BROWN 4WD Travel Lightweight US $149.99
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 Travel Set With Leather Luggage Tote Duffel Bag and Leather Garment Storage Bag US $50.02
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 Studded Motorcycle Travel Bag Saddlebag Cooler Set with Built In Bottle Opener US $86.95
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 New 4 Piece Luggage Rolling Set Animal Brown Set Carry On Bag Cosmetic Tote US $35.50
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 Stylish Skull Luggage Trio US $134.95
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 New 4 Pc Luggage Set with Rolling Carry On Brown Animal Print US $44.99
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 Quilted Travel Bag Sets Black •Rolling duffel bag •Travel tote •Cosmetic bag US $22.95
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 NEW NWT Authentic Vera Bradley Blue Lagoon Garment Bag Travel Tote US $85.00
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 Backpack Rolling Bag Cart Suitcase Trolley Luggage Embassy Travel Gear 19x145x9 US $37.99
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 Eddie Bauer Travel Luggage Toiletry Cosmetic Shower Shaving Bag Organizer NEW US $17.98
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How do I solve this physics problem?
Two cars race along a straight track with a distance 2x. Car A travels with a constant velocity v for the entire race. Car B travels with a velocity (v-2) for the first half of the trip and a velocity (v+2) for the second half of the trip. Which car wins the race and by how many seconds? Assume instantaneous accelerations for both cars.
Explain how you figured that out, please?
in rectilinear motion> object travels given distance with average velocity (or speed)
car A>
time (A) = displacement / average velocity = 2x/v
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car B>
time (B) = displacement / average velocity = 2x / [v - 2 + v + 2]/2 = 2x/v
time (A) = time (B)
dead heat > no one wins
=========================== crude method
let car A finish in time = 2t = t + t
t = x / v
------------------
car B> covers x1 in t
x1 = (v - 2) t = v t - 2t = x - 2t
lets see how much car B covers in next t time
x2 = (v + 2) t = v t + 2t = x + 2t
total distance by car B in 2t = x1 + x2 = 2x
everything same by car B as was done by car A
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