Acceleration is _______________.(1 point)
Responses
An object’s speed when its motion is constant
An object’s speed when its motion is constant
An object’s speed in a specific direction
An object’s speed in a specific direction
An object’s direction’s rate of change
An object’s direction’s rate of change
An object’s velocity’s rate of change
An object’s velocity’s rate of change
An object’s velocity’s rate of change
An object's acceleration is its velocity's rate of change. To find an object's acceleration, you need to know its change in velocity and the time it takes for that change to occur. The formula for acceleration is:
acceleration = (change in velocity) / (time taken)
The unit of acceleration is meters per second squared (m/s^2). Acceleration can be positive or negative, depending on whether the velocity is increasing or decreasing, respectively. The direction of acceleration is determined by the direction of the change in velocity. So, option D, "An object’s velocity’s rate of change," is the correct answer.