Question

6. In an experiment, a Van der Graaff accelerator produces a beam of aluminum ions that strike a thin aluminum foil target. The ions in the beam have a speed of 4.71 × 106 ?/?. One of them collides with an aluminum atom in the foil, ionizes it, and knocks this newly formed ion out of the foil. A detector is located so that the line between it and the target makes an angle

? = 25° with respect to the beam. This detector registers the arrival of the ion. This is 1

modeled as an elastic collision.

1. Find the scattering angle ?2 at which the other ion in the collision is scattered

2. Find the speeds of the two ions immediately after the collision.

Answer 1