Question

What is positive acceleration?

Answer 1

Hint:Let us first discuss acceleration before moving on to the question. In mechanics, acceleration is the rate at which an object's velocity changes with respect to time. The term "acceleration" refers to a quantity that is measured in vectors (in that they have magnitude and direction). The direction of an object's acceleration is determined by the orientation of the net force acting on it.

Complete answer:
The term "positive acceleration" refers to a speed increase over time. The term "negative acceleration" refers to a decrease in speed over time. It's a stumbling block. Positive acceleration occurs when the vehicle's speed increases. The speed of the car diminishes as it slows down. When an object accelerates in the same direction as its velocity, the acceleration is in the same direction as the velocity. As a result, this object is moving at a positive rate.

Additional information: Accelerometer is a device that measures the rate at which an object's velocity changes (i.e., its acceleration). Acceleration cannot be directly measured. As a result, an accelerometer monitors the force imposed by constraints on a reference mass in order to keep its location stable in an accelerating body. The link between constraint force and acceleration defined by Newton's second law is used to calculate acceleration: $$force=mass\times acceleration$$.

Note:The usage of positive and negative in physics always has a physical significance. It's more than just a mathematical notation. Positive and negative describe a direction when used to describe the velocity and acceleration of a moving object. Both velocity and acceleration are vector numbers, which necessitate the employment of a directional word to fully describe them.