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exam2fs03

# exam2fs03 - MC P6 P7 P8 P9 P10 Bonus Total 15 Fall 2003...

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MC P6 P7 P8 P9 P10 Bonus Total 15/ 5/ 10/ 10/ 10/ 20/ 5/ Fall 2003 Last Name______________________________ Physics 175 Exam #2 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. Surround your result in a box and don’t forget to include the units for your result. 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. (3 points) A body moves with constant speed in a straight line in an inertial reference frame. Which of the following statements must be true? a) no force acts on the body b) a single constant force acts on the body in the direction of motion c) a single constant force acts on the body in the direction opposite to the motion d) a net force of zero acts on the body e) a constant net force acts on the body in the direction of motion

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