Question

What is the change in velocity of a moving body in unit time called?

Answer 1

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. A definition of an object's speed and direction of motion is referred to as velocity. In kinematics, the branch of classical mechanics that explains the motion of bodies, velocity is a basic notion. Velocity is a physical vector quantity that requires both magnitude and direction to define.

Complete step by step answer:
Acceleration is the change in velocity of an item per unit time.
$a = \dfrac{{v - u}}{t}$
The rate of change of an object's velocity with respect to time is called acceleration in mechanics. Accelerations are measured in terms of vectors. The orientation of the net force applied on an item determines the orientation of its acceleration. Newton's Second Law describes the magnitude of an object's acceleration as the combined impact of two sources.
The amount of this net resultant force is exactly proportional to the net balance of all external forces acting on that item.
An object's mass, which varies based on the materials used in its construction – magnitude is inversely related to mass.
The dimensions of acceleration are velocity ($L{T^{ - 1}}$) divided by time, i.e. $L{T^{ - 2}}$. The metre per second squared ($m{s^{ - 2}}$) is the SI unit of acceleration, or "metre per second per second," since the velocity in metres per second varies by the acceleration value every second.

Note:
A kind of motion in which the velocity of an object varies by an identical amount every equal time period is known as uniform or constant acceleration. An object in free fall in a uniform gravitational field is a well-known example of uniform acceleration. In the absence of resistances to motion, the acceleration of a falling body is solely determined by the intensity of the gravitational field.