Question

what is the speed of an object in circular motion called? centripetal speed inertial speed tangential speed circular speed

Explanation:

Tangential speed is the speed of an object in circular motion. Centripetal force is what keeps an object in circular motion, not a type of speed. Inertial speed is not a standard term related to circular motion. Circular speed is too general, while tangential speed specifically refers to the linear speed of an object moving along a circular path at any instant, tangent to the circle.

Answer:

tangential speed