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expression for average velocity. As said earlier above this D t has to be near zero if we want to calculate instantaneous velocity. Much greater than the depth of flow is a good approximation to a flow with infinite width.
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As we worked out above it ends up traveling at a final velocity v f of 15 ms. Soaverage velocity 45 5 2 15ms1. To illustrate this idea mathematically we need to express position x as a continuous function of t denoted by x t.
The average velocity is always less than or equal to the average speed of an object.
Velocity is a vectorquantity and average velocity can be defined as the displacementdivided by the time. We know that average velocity is the same thing as initial velocity vi plus final velocity vf over 2. C 83p x rms. Average velocity is defined as total displacement total time taken for that.
