Avelocity selector has a magnetic field of magnitude 0.26 t perpendicular to an electric field of magnitude 0.46 mv/m. what must the speed of a particle be for it to pass through undeflected?

with 5 seconds, no, but over time if the police car stays at 65m/s ad the speeding car stays at 60, then obviously yes, but the answer to your question would be, no.

hope this : )

it would be kevlar ^^