Question

what is speed, velocity & acceleration? | physics
acceleration is measured in units of distance per time and expressed as meters per second squared (m/s²).
acceleration
10 seconds
55 mph
50 mph
acceleration is the rate of change of an objects
speed
velocity

Explanation:

Acceleration is defined as the rate of change of velocity. Velocity is a vector quantity (has both magnitude and direction), and acceleration measures how quickly velocity changes over time. While speed is a scalar quantity (only magnitude), acceleration specifically relates to the change in velocity (which can involve changes in speed, direction, or both).

Answer:

Velocity