PHYS 221 Midterm: PHYS 221 Iowa State Exam3 F11 Solutions
Document Summary
Physics 221, fall 2011 final exam solutions wednesday, december 14, 2011. Note: the unit vectors in the +x, +y, and +z directions of a right-handed cartesian coordinate system are i, j, and k , respectively. Problems 61 through 75 are worth 4 points each: the acceleration of a particle moving along the x-axis versus time t is a velocity of the particle at time t = 0 is v is v. The velocity of the particle at time t = 4. 00 s x. 0: 12, 8, 4, 0 x (t )dt = v. = 0. 0 m / s : a particle is undergoing nonuniform circular motion in the x-y plane. The angle ! that the particle makes with the positive x-axis is ! = (5. 03 rad/s2 )t 2 , where t is the time in seconds. Starting at time t = 0, the particle makes ____ revolutions around the circle in a time interval of 5. 00 s.
