PHYS 221 Midterm: PHYS 221 Iowa State Exam2 F10 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: the unit vectors in the +x, +y, and +z directions of a right-handed cartesian coordinate system are i, j, and k , respectively. In this exam, assume that the magnitude of the acceleration due to earth"s gravity at the surface of the earth is g = 9. 80 m/s2. Problems 31 through 45 are worth 2 points each: a particle is moving along the x-axis under the influence of a conservative force. The potential energy u(x) of the particle that is associated with this force is shown in the graph to the right. The force on the particle is zero at x = 0. 0 m.
