Average velocity is the rate of displacement divided by time elapsed, whereas Instantaneous velocity is the velocity at an instant of a time frame of an object.Main Differences Between Average Velocity and Instantaneous Velocity Instantaneous velocity and instantaneous speed are the same except they differ in their vector and scalar quantities. It is the velocity at an instant of time, a graph that represents velocity at every instant of time is also known as instantaneous velocity.Ī graph plotted with the position of the location of the object versus the time frame, such that the slope thus occurred is the tangent line and thus the resulting velocity is said to be Instantaneous velocity. It is equal to average velocity when either the velocity is constant over time or the acceleration is zero at that instant of time. Instantaneous velocity can be expressed using graphs and slopes. Instantaneous velocity can be negative or positive, whereas Instantaneous speed is always positive which is found using instantaneous velocity. It is a vector quantity that describes both the magnitude and speed of an object with time. Instantaneous velocity has the SI unit as a meter per second or CGS unit as length per time. It has a limit that the time between the two pints or the time elapsed during the displacement approaches zero. It is the velocity between two points at an instant of time. Instantaneous velocity is the quantity that describes the speed of an object along with its direction between two points. When an object is moving in a straight line towards a particular direction, its average velocity can be found using average linear velocity, whereas when an object revolves around a circular direction and reaches a particular point, it is called Average Angular Velocity. It is also called Average Linear Velocity. When the object has varying velocity throughout its journey then average velocity can be calculated as the sum of all its displacements divided by the sum of time taken. It can be derived as total displacement divided by the total time taken.Īverage velocity can be found using a total velocity divided by time. The varying velocity of an object helps in determining the overall journey of the object using average velocity. Its SI unit is a meter per second.Īverage velocity included both magnitude and direction, unlike average speed which includes only the magnitude. It is calculated as the rate of displacement divided by time elapsed. It is the rate of change in location or displacement at a particular period between the positions of the object being displaced. What is Average Velocity?Īverage velocity is a quantity that is proposed concerning time. When acceleration is zero both average velocity and instantaneous velocity are equal. Similarity When velocity is constant both average velocity and instantaneous velocity are equal. Instantaneous velocity is calculated by dividing displacement by time at that instant or particular point of time. Formula Average velocity is calculated by dividing the rate of displacement by time elapsed. Instantaneous velocity is also a vector quantity. Quantity Average velocity is a vector quantity, as it includes both magnitude and direction. meter per second is the SI unit of instantaneous velocity. SI Unit meter per second is the SI unit of average velocity. Instantaneous velocity is defined as the displacement as an instant of time. Comparison Table Between Average Velocity and Instantaneous Velocity Parameters of Comparison Average Velocity Instantaneous Velocity Definition Average velocity is defined as the rate of displacement or change in the location of the object to time. It is a vector quantity and its SI unit is meter per second which is the same as average velocity. Average velocity and instantaneous velocity will approach unity when the velocity is constant or the acceleration is zero. Instantaneous velocity is defined as velocity or displacement at an instant of time. The only difference between an average speed and average velocity is that average speed is calculated by dividing the rate of distance traveled by time, whereas average velocity is calculated by dividing the rate of displacement by time elapsed. Average Velocity is the ratio of displacement to the time taken for that displacement to occur.
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