1. The problem statement, all variables and given/known data Bullets of mass 1.53 gm are fired in parallel paths at speeds of 244.4 m/s through a hole 1.99 mm. How far from the hole must you be to detect a 1.77 cm in the beam of bullets 2. Relevant equations 3. The attempt at a solution I feel as though some crucial information is missing (like a word between "1.77 cm" and "in the beam". Am I missing something here? Can someone just give me a clue on where exactly to start? My professor is not the best at explaining the concept behind the problem sets. Thanks in advance.