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Unformatted text preview: Patel (pnp223) – homework 16 – Turner – (92160) 1 This printout should have 12 questions. Multiplechoice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Suppose you want to ride your mountain bike up a steep hill. Two paths lead from the base to the top, one twice as long as the other. Compared to the average force you would exert if you took the short path, the average force you exert along the longer path is 1. four times as small 2. half as small 3. the same 4. three times as small 5. undeterminedit depends on the time taken 002 (part 1 of 6) 10.0 points A heavy ball swings on a string in a circular arc of radius 1 m. Q 1 m Q ′ P 3 5 ◦ The two highest points of the ball’s trajec tory are Q and Q ′ ; at these points the string is ± 35 ◦ from the vertical. Point P is the lowest point of the ball’s trajectory where the string hangs vertically down....
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This note was uploaded on 07/11/2009 for the course PHY 92160 taught by Professor Turner during the Spring '09 term at University of Texas.
 Spring '09
 Turner
 Physics, Work

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