Acceleration is _______________.(1 point)
Responses
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 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 velocity’s rate of change
Acceleration is an object's velocity's rate of change.
The correct answer is: An object’s velocity’s rate of change.
To understand acceleration, we first need to understand velocity. Velocity is a vector quantity that describes both the magnitude (speed) and direction of an object's motion. The rate at which velocity changes with time is called acceleration.
To calculate acceleration, we need to measure the change in velocity over a specific time interval. This can be done using the formula:
acceleration = (change in velocity) / (time interval)
Acceleration can be positive or negative, depending on the direction of the change in velocity. When the velocity increases, acceleration is positive. When the velocity decreases, acceleration is negative (also known as deceleration).
So, to summarize, acceleration is the rate at which an object's velocity changes over time.