PHYS-P 221 Midterm: Physics P221 IU Fall 07 Exam 2
Document Summary
Do not turn the page until instructed to begin. Instructions: write your name and seat number on the front of the blue books, write all your work including answers in the blue exam books provided. You may keep the exam: for multiple choice problems only the answer will be graded and no partial credit given, for long-answer problems, show your work, as credit will not be given for an answer only. Also, partial credit may be given: don"t forget units and answer with vector (not just a magnitude) when the problem requires. Use the correct number of signi cant gures: this is a closed-book examination. 1)(5 pts) two identical balls roll o of a table. Ball a rolls o with a horizontal velocity of 3 m/s. B rolls o with a horizontal velocity of 1 m/s. Ignore the e ects of friction and air resistance: ball a, ball b, neither.
