Chapter 9, Problem 11Q

Block 1 with mass m₁ slides along an x axis across a frictionless floor and then undergoes an elastic collision with a stationary block 2 with mass m₂. Figure 9-33 shows a plot of position x versus time t of block 1 until the collision occurs at position x_c and time t_c. In which of the lettered regions on the graph will the plot be continued (after the collision) if (a) m₁ < m₂ and (b) m₁ > m₂? (c) Along which of the numbered dashed lines will the plot be continued if m₁ = m₂?

Figure 9-33 Question 11.