1 kilometer is 3,2808 feet, these are units of length. Velocity is distance (length)/time. If you could cover 3,2808 feet in 1 second, your velocity = 3,2808 feet per sec or 1 km/sec since
3,2808 feet/ sec = 1 km/sec.
At 60 miles per hour a car travels 1 mile in 1 minute
and since 1 mile = 1.61 km
1 mile/minute = 1.61 km/ minute
Ken you are playing with apples and oranges
apples 3,2808 Ft=9.999909Kilometers DISTANCE
oranges 3,2808 feet per second is equivalent to 9.999909Kilometers per second VELOCITY
Ken, you have a good intuitive sense. You are right. It can't be done.
3.2808ft to km/s
It seems like you can just
(3.2808ft * 1000km) * (1/3600s)
but does it make sense? If it does make sense, then i cannot visualize a unit of distance being converted into a unit of velocity.