Meter-hertz is a natural expression of velocity in some contexts though.

The radius of a rotating disk times the frequency of rotation would give you the tangential velocity.

Or wave speed expressed as the product of wavelength and angular frequency.

Good point. Hertz is weird because it automatically makes one think of frequency but it's really just "per-second". I just read up about Hertz - weird he lived not that long ago. What did they use for frequency before Hertz?

Ooh, you could have gone one further and done hertz-per-diopter.

Equating m/s and m·Hz is perfectly correct if you're asked to calculate the linear speed of a vehicle, given the radius of its wheels and their rotation rate, assuming no slippage! This is of course equal, up to a change of frame, to the tangential speed of a point on the wheel rim, as a sibling commenter noted.

Or measuring torque in Watt-hours (or any other unit of energy -- joules, calories, BTUs...).

Obligatory comic: https://xkcd.com/687/

Some crimes can be avoided with Orientational Analysis. Nobody teaches it though.