Naic: Department of Physics and Mathematics Tennessee State University Plhysics

Question

Naic: Department of Physics and Mathematics Tennessee State University Plhysics 2110. Spring 2014 Practice Exam 1: 100 Points Total For your practice only; do not turn in. Hiuts: 1. There are 8 multiple choice/short answer problems. You must complete all of these p 2. There are 2 long answer problems. You may choose to complete any 1 of these for fill 3. If you auiswer botlh loug probleus. I will count the score of the best. There will niot b the additional problem. 4. Be sure to complete all sub-parts of a given problem. 5. Draw a picture to clarify what is going on. 6. Show all work for partial credit. 7. Try the problems cven if you are lost show me what you do know. 8. There are 100 points, and the exam is 55 minutes long. You have about 1 minute pe your answers. Pace yourself to avoid spending more than 4 minutes on a 8 point questi 1 Multiple Choice Questions 1. (8 pts) Which of the following situations is impossible? a) An object has zero velocity but nonuzero acceleration. An object has velocity directed cast and acccleration directed west (c) An object has constant nonzero acceleration and changing velocity (d) An object has velocity directed east aud acceleration directed east. (e) An object has constant nonzero velocity and changing acceleration. 2. (8 pts) TheUnited States National Debtisincreasing at a rate of $1.39 × 10 ond? (4,000 (b) 13 (c) 25,400. (d) 1,060.000 (c) 2.640.000 -3 rtf) None of the above within 2% of thkcorreraimer. nt) A6i8.00i. What is the magnitude and angle (measured count

Explanation / Answer

1. (a) possible - object comes at momentarily rest.

(b) possibe - in this speed will decrease.

(c) if there is non-zero acc then speed will change.

(d) speed will increase.

(e) acceleration is there(whether constant or not), velocity will change.

so Impossible

Ans(e)

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