Can a body have 0 average velocity but not 0 average speed justify?
As it can be zero, so average velocity of the body can also be zero. But the average speed is the ratio of the total covered by the body to the time taken by it. As it can never be zero, so average speed of the body can also never be zero. Thus, the average velocity of a body can be zero but not its average speed.
Since distance is also a scalar quantity and it wont be negative if we moves in opposite direction. It always adding irrespective of direction.So total distance travelled of a moving body can not be zero. So total average speed also cannot be zero and it will be nonzero if body is moving..
The average speed of a body in motion can never be zero whereas the average velocity of a body can have zero value.
Hence, it is impossible for an object to have zero speed and non-zero velocity.
This means that when a body changes position in a particular direction at first, and changes the position in the opposite direction by the same amount, the displacement is zero. Also, for a uniformly accelerating body, the average velocity is zero if the final velocity is equal to the negative of the initial velocity.
(A)A car moving with an average speed returns to its original position. Hence, in this case the average speed is non-zero while the average velocity is 0.
The average velocity of a moving body can be zero, for example, when the displacement is zero. However, the average speed of a moving body can never be zero because it will cover some distance while moving.
People may think that average speed and average velocity are just different names for the same quantity, but average speed depends on distance and average velocity depends on displacement. If an object changes direction in its journey, then the average speed will be greater than the magnitude of the average velocity.
Yes, an object can have zero velocity and still be accelerating.
Yes, it is possible when an object is thrown upward then at the highest point its velocity is zero and it has acceleration due to gravity, which is finite.
Can the average speed of an object be zero Why?
As per the question, if the object is moving then the distance covered by the body cannot be zero, so the speed cannot be zero for a moving body.
Motion of a boy from his home to shop (in one direction) arid back to home (in its reverse direction) is an example of a situation in which a body has a certain average speed but its average velocity is zero.
For example, if a ball is thrown up then at the highest point, velocity is zero but the acceleration is non-zero.
The magnitude of average velocity is always less than or equal to the average speed because displacement is always smaller than or equal to distance. The average velocity of the particle can be positive as well as negative and its positive and negative value depends on the sign of displacement.
Average speed is the total distance travelled by an object to the total time taken. However, average velocity is the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs.
Average speed is either equal to or greater than the average velocity. No worries!
What is the difference between average velocity and average speed? Average velocity shows both the magnitude and the direction of the motion of an object during a time interval. Average speed shows only how fast the object is moving (not the direction of motion).
a) Average speed is total displacement per unit time while average velocity is total distance travelled per unit time. b) Average speed is total distance travelled per unit time while average velocity is total displacement per unit time. c) Average speed is vector while average velocity is scalar quantity.
Therefore, the magnitude of average velocity of an object is equal to its average speed when the displacement of the object is equal to the distance covered by it in a given time interval. This happens when an object moves along a straight line in the same direction (without turning back).
Average Velocity: A Graphical Interpretation
In everyday usage, the terms “speed” and “velocity” are used interchangeably. In physics, however, they are distinct quantities. Speed is a scalar quantity and has only magnitude. Velocity, on the other hand, is a vector quantity and so has both magnitude and direction.
