Question

Rate of change of velocity is called ____?

Answer 1

Hint: The direction of a body's or an object's movement is defined by velocity. The rate of change of an object's location with regard to a frame of reference is its velocity, which is a function of time. Velocity is a physical vector quantity that requires both magnitude and direction to define.

Complete answer:
Acceleration is the rate at which velocity changes, and accelerated motion is the type of motion. The rate of change of velocity with respect to time is known as acceleration. Because acceleration is a vector quantity, it has both a magnitude and a direction. The pace at which displacement varies over time is referred to as velocity. The ratio of change in velocity within a particular time period such that the time period goes to zero is defined as instantaneous acceleration.
The rate of change of an object's velocity with respect to time is called acceleration in mechanics. Accelerations are values that are measured in vectors (in that they have magnitude and direction). The orientation of the net force applied on an item determines the orientation of its acceleration. Newton's Second Law describes the amount of an object's acceleration as the combined impact of two causes:

Note: The item will accelerate if acceleration is in the same direction as velocity. The item will slow down if the acceleration is in the opposite direction as the velocity. Examine the accelerations in the diagram below, as a car travels into the mud, slowing it down, or chases down a donut, speeding it up. Assuming that rightward is positive, the velocity is positive while the automobile is going to the right, and negative when it is travelling to the left.