Answer:
Tangential speed: m/s, ft/s, cm/s, m/hr, km/hr, etc
Rotational speed: rev/min, rad/s, rad/min, rev/s, etc
Explanation:
The tangential speed is basically the linear speed with formula:
Tangential Speed = Linear distance/ Time
Hence it has units of linear speed such as: m/s, ft/s, cm/s, m/hr, km/hr, etc
The rotational speed has the formula:
Rotational speed = angular displacement/ time
Hence, it has units: rev/min, rad/s, rad/min, rev/s, etc