The document contains 4 problems involving the analysis of x(t) and v(t) graphs of moving bodies:
1) The first problem asks to calculate the path, velocity at a time, time interval of negative velocity, and acceleration from an x(t) graph.
2) The second deals with changes in sign of velocity and calculating displacement from a v(t) graph.
3) Problems 3 and 4 refer to graphs of displacement x(t) and velocity v(t), asking to determine times when distance is zero and the measurement rate, and find the path length and scale of the v(t) graph.