Question

Distinguish between acceleration and retardation.

Answer 1

The increase in velocity per second is acceleration, whereas the decrease in velocity per second is retardation. Retardation, therefore, is negative acceleration. Acceleration is generally taken positively, while retardation is taken negatively.

Complete solution:
Acceleration:
1.Acceleration is known as an object's increase in velocity per unit of time. Acceleration is the rate at which an object's velocity changes in relation to time.
2. Increasing velocities are amounts of vectors (in that they have extent and heading). The direction of the speeding up of an article is given by the direction of the net power which follows up on that object.
3.Acceleration (a) is the velocity change (v) over time change (t), represented by the equation a = v/t.
4. This allows you to measure how fast the velocity of metres per square second $m/{{s}^{2}}$ changes. Acceleration is also a quantity of the vector, so both magnitude and direction are included.
5. For example, if a car turns a corner at constant speed, because its direction is changing, it is accelerating. The faster you turn, the bigger the acceleration. So when speed changes either in size (an expansion or abatement in speed) or in heading, or both, there is a quickening.

Retardation:
1.Retardation is just the opposite of acceleration per unit of time or the reduction of velocity.
2.Retardation is nothing but an acceleration of negativity. The body's velocity may either increase or decrease.
3.The velocity change is known as acceleration. Acceleration with an adverse sign is retardation.
4.Or the negative acceleration value shows that a body's velocity is decreasing. The rate of change of velocity, i.e. mathematically: $a=\dfrac{v-u}{t}$, can be defined as acceleration. Where v = final velocity, u = initial velocity & t = time taken for velocity to change.
5. When a body is thrown vertically upward, its velocity decreases during the upward movement and it becomes zero at the highest point. This is a retardation case.

Note:
Any adjustment in an article's speed brings about a quickening: speeding up (what individuals normally mean when they state increasing speed), diminishing pace (likewise alluded to as deceleration or hindrance), or altering course (called centripetal speeding up). At the point when a body's speed decays, the quickening is supposed to be negative (Retardation).