# How Do You Calculate Deuteron's Velocity After a Neutron Collision?

• soul5
In summary, the problem involves a neutron colliding with a stationary deuteron in a nuclear reactor. After the collision, the neutron is deflected by 90 degrees and moves in the positive y direction with a speed of vo/*square root of three*. The task is to find the x and y components of the deuteron's velocity after the collision, taking into account that the deuteron is twice the mass of the neutron.
soul5
I'm at the last equation of my homework and I'm stuck

## Homework Statement

In a nuclear reactor, a neutron moving at speed vo (vo is initial speed) in the positive x direction strikes a deuteron, which is at rest. The neutron is deflected by 90 degrees and moves off with a speed vo/*square root of three* in the positve y direction.

## Homework Equations

Find the x and y components of the deuteron's velocity after the collision. The mass of the deuteron is twice the mass of the neutron.

## The Attempt at a Solution

I tried, but I don't get it.
Plz help me show work if you can thxs.

Last edited:
I don't get it?

what do I do because the mass in twice?

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