How does the conversion from the unit J-s/kg-m to the unit of velocity (m/s) work?

In my textbook, the unit J-s/kg-m was converted to the unit m/s without comment or explanation. I'm being asked to demonstrate the equivalence of these two units, but haven't the faintest idea how to do so mathematically.

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).