MATH 151 Midterm: MATH 151 TAMU Y2011 2011c Exam 1b Solutions
Document Summary
Common examination i - version b - solutions. Part 1 multiple choice (12 questions, 4 points each, no calculators) Write your name, section number, and version letter (b) of the exam on the scantron form. Mark your responses on the scantron form and on the exam itself. Let v (cid:1) (cid:1)4, (cid:1)2(cid:2) and w (cid:1) 6i (cid:2) 2j. 2 (cid:1)4, (cid:1)2(cid:2) (cid:1) (cid:1)6, 2(cid:2) (cid:1) (cid:1)2, (cid:1)1(cid:2) (cid:2) (cid:1)(cid:1)6, (cid:1)2(cid:2) (cid:1) (cid:1)(cid:1)4, 3(cid:2) v (cid:1) w (cid:1) 42 (cid:2) 32 (cid:1) 5. A ball whose weight is 50 newtons hangs from two wires, one at angle 23 from horizontal, and the other at angle 37 from horizontal. Let t1 be the tension in the first wire, and. T2 be the tension in the second wire. Which set of equations can be used to solve for t1 and t2? and (cid:1)|t1 | sin 23 (cid:2) |t2 | sin 37 (cid:1) 50.
