Two blocks, with masses m1, = 2.5 kg and m2 = 14 kg, approach each other along a horizontal, frictionless track. The initial velocities of the blocks are v1 = 12.0 m/s to the right and v2 = 3.4 m/s to the left. The two blocks then collide and stick together. Which of the graphs could represent the force of block 1 on block 2 during the collision?
Figure Q9.23
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