what is retardation

The negative acceleration is called as retardation

what is uniform circular motion

If an object moves on a circular path with uniform speed its motion is called uniform circular motion

what is non uniform acceleration

If there is an equal or variable change in velocity with equal change in the acceleration is called non uniform

what is uniform acceleration

 the rate of change of velocity of a moving body is always equal with the rate of change of velocity of a moving body is always equal with a small period of time that celebration of body is called uniform

when will you say a body is in non uniform acceleration

 if the rate of change of velocity of a moving body is different or variable with changing a small period of times the acceleration of the body is called as non uniform

when will you say a body is in uniform acceleration

If the rate of change of velocity of a moving body is always uniform with small time periods the acceleration of the body is called as uniform

what is acceleration

 the rate of change of velocity is called as acceleration this is indicated by a.
a = (v-u)/t

what is a speed time graph

The graph plotted on axis X and Y taking time and speed respectively is called as a speed time graph

what is average speed

The distance travelled by an object in unit period of time is called as average speed.
Or,
 the ratio between Total distance the ratio between Total distance and total time covered by a moving body is called as a speed.
Average speed = Total distance travelled/ total time taken

what do you mean by relative velocity

When two object move the velocity of one object is respect to other is called as relative velocity

what do you mean by linear motion

When an object moves along a linear path if motion is called as motion in a straight line example motion of motor vehicle

what do you mean by circular motion

 when an object moves along a circular path it motion is called as circular motion example motion of a fan

what is the meaning of variable motion mention one example

 is motion of a body is with changing time periods it is called as variable motion example a vehicle moving on road

what is the meaning of uniform motion can you mention any one example of having uniform motion

If motion of a body remain uniform motion is called as uniform motion example motion of rounds of a watch

what do you mean by non uniform velocity

If a moving body travels variable distance in equal period of time or its direction is changed its velocity is called as variable

what do you mean by uniform velocity

If an object moves along a straight line and travels equal distance in equal period of time it is velocity is termed as uniform

what do you mean by displacement

 change of position in a fixed direction is called as displacement.
Or,
The lowest distance between initial and final state of an object is called as displacement

what do you mean by origin

The position of a point in comparison to which position of an object is estimated is called as origin

what do you mean by Rest

If an object does not change its position with change in time it is called as the state of rest. Example house tree etc

what do you mean by motion

If some one change it position with time it is called as motion. A running boy flying bird etc are example of motions