Question

Question #66d4d

Answer 1

Assuming you know the two equations (`p = mxxv` and `E_k = 1/2mxxv^2`) it isn’t too tricky.

Explanation:

As `p = mxxv`

so `p^2 = m^2xxv^2`

so as `E_k = 1/2mxxv^2`

we can state that `E_k = p^2/(2m)` or `p = sqrt((2E_k)m)`