Answer
Particle 1 has the greatest momentum magnitude, followed by a tie of 2 and 3, then 4, and then a tie of 5 and 6.
Work Step by Step
We are asked to rank the particles in order of momentum magnitude; greatest first. Based on the triangle of Fig 37-14, we know that the length of the vertical component of each triangle represents the product of momentum magnitude and the speed of light. The triangles that have the largest vertical components have the largest momentum magnitude.
From the given triangles, particle 1 has the greatest momentum magnitude, followed by a tie of 2 and 3, then 4, and then a tie of 5 and 6.