Practice Exam 1.pdf

# Practice Exam 1.pdf - Prof Mitchell PHY130 Practice Exam#1...

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Prof. Mitchell PHY130 Practice Exam #1 NAME: You have 50 minutes to answer the following questions. All questions that aren’t fully answered will still receive points for partial credit. Please sign below the following statement: TO THE BEST OF MY KNOWLEDGE I HAVE NOT CHEATED OR RECEIVED ANY HELP ON THIS EXAM :

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Part I. Multiple Choice (XX pts each) Questions: 1. You throw a ball straight down with an initial speed of 4.0 m/s from a height of 2.5 m. What is the velocity of the ball right before it strikes the ground? (a) 8.062 m/s (b) -7.3 m/s (c) -8.1 m/s (d) 4.8 m/s 2. An negative acceleration may cause… (a) an increase in speed. (b) a decrease in speed. (c) and object to travel in a curved trajectory. (d) All of the above. 3. You walk 4.0 miles south and then 3.0 miles west. What displacement will bring you back to the starting point?
• Fall '17
• ian morrison
• Velocity, ball, Miles per hour

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