exam1ws04 - MC P6 P7 P8 P9 P10 P11 Bonus Total 20/ 10/ 10/...

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MC P6 P7 P8 P9 P10 P11 Bonus Total 20/ 10/ 10/ 5/ 5/ 10/ 15/ 5/ Winter 2004 Last Name______________________________ Physics 175 Exam #1 First Name______________________________ ID # ___________________ Points for each question are indicated in parentheses. Show your work for solutions to questions that require calculations. Explain from where you start to solve the problem and show your math flowing from it for full credit. If you need more space to finish a question, write BPP (Back of the Previous Page) at the end of the space provided and then complete your work on the back of the previous page. For multiple choice questions, circle the letter which you believe to be correct (or best). In all problems, take the gravitational acceleration g = 10 m/s 2 . 1. (4 points) A boy jumps off a high diving board above a swimming pool. Halfway between the board and the water he tosses a ball upward. Ignoring air friction, the instant after the ball leaves his hand the vertical component of the acceleration of the ball a) Is positive, but then decreases through zero to -9.8 m/s 2 b) Is zero but then decreases to -9.8 m/s 2 c) Is between zero and -9.8 m/s2 but the decreases to -9.8 m/s 2 d) Is -9.8 m/s 2 2. (4 points) An object thrown straight up falls back to the ground T seconds later. Its maximum height is
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exam1ws04 - MC P6 P7 P8 P9 P10 P11 Bonus Total 20/ 10/ 10/...

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