q2 - Version PREVIEW – quiz – philipose – (1710) 1...

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Unformatted text preview: Version PREVIEW – quiz – philipose – (1710) 1 This print-out should have 6 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Holt SF 03A 02 001 (part 1 of 2) 10.0 points While following the directions on a treasure map, a pirate walks 28 . 1 m north, then turns and walks 9 . 0 m east. What is the magnitude of the single straight-line displacement that the pirate could have taken to reach the treasure? Correct answer: 29 . 5061 m. Explanation: Let : Δ x = 9 . 0 m and Δ y = 28 . 1 m , where north and east are positive. Δ y Δ x d θ d = radicalBig (Δ x ) 2 + (Δ y ) 2 = radicalBig (9 m) 2 + (28 . 1 m) 2 = 29 . 5061 m . 002 (part 2 of 2) 10.0 points At what angle with the north would he have to walk? Correct answer: 17 . 7595 ◦ . Explanation: tan θ = Δ x Δ y θ = tan − 1 parenleftbigg Δ x Δ y parenrightbigg = tan − 1 parenleftbigg 9 m 28 . 1 m parenrightbigg = 17 . 7595 ◦ ....
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This note was uploaded on 05/09/2010 for the course PHYS 1710 taught by Professor Weathers during the Spring '09 term at University of North Carolina Wilmington.

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q2 - Version PREVIEW – quiz – philipose – (1710) 1...

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