WebIf an object changes direction in its journey, then the average speed will be greater than the magnitude of the average velocity. Speed is a scalar, and average velocity is a vector. Average velocity indicates direction and can be represented as a negative number when the displacement is in the negative direction.

CAN THE AVERAGE VELOCITY OF A MOVING BODY BE ZERO?

WebJun 4, 2016 · Yes, average velocity of a moving body can be zero. Average velocity is displacement by time. So for example, if you are travelling in a circle, and come back to your initial point, displacement is zero. Thus irrespective of the time you take, the displacement would be zero and hence average velocity of your moving body will also be zero. WebAverage velocity is a vector quantity. Average velocity is defined as the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs.The average velocity can be positive or negative depending upon the sign of the displacement. The SI unit of average velocity is meters per second (m/s or ms -1 ). chisholm remedial massage

CBSE Class 9 Answered - TopperLearning

WebDisplacement Δ x is the change in position of an object: Δ x = x f − x 0, 3.1. where Δ x is displacement, x f is the final position, and x 0 is the initial position. We use the uppercase Greek letter delta (Δ) to mean “change in” whatever quantity follows it; thus, Δ x means change in position (final position less initial position). WebIf average speed is zero i.e the sum of the distance will be zero (that we got from the equation).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 ... WebThe average speed of a moving body can never be zero but the average velocity of a moving body can be zero. Justify. Q. If a body travels at a uniform velocity of u for t seconds and at a different velocity of v for the next t seconds, what is the total distance covered in 2 t seconds? chisholm red tartan