PHYS 221 Midterm: PHYS 221 Iowa State Exam2 F09 blank
Document Summary
Instructions: put away all materials except for pens, pencils, erasers and your calculator. If you did not bring a pencil, ask for one. If you need to change any entry, you must completely erase your previous entry: carefully read each problem completely and its five possible answers before beginning to work the problem. Note: in this exam, take the magnitude of the gravitational acceleration at earths"s surface to be g = 9. 80 m/s2. The point(s) of unstable equilibrium of the particle is(are) ____: a and g only, c and e only, b, d, and f only, b and f only, d only. 10: a particle slides towards the right along a frictionless track under the influence of gravity as shown in the figure. The particle starts with nonzero kinetic energy at position a, then slides past positions b and c and eventually slides past position d. position b is at height y = 0.
