41. The average velocity of the object over a whole rotation will indeed be zero, in that the displacement ends up being zero. 42. The mass averaged velocity of any mixture is the velocities of all the species flowing together, taken with the consideration of their masses. 43. A stream is marked off into sections and separate measurements are taken for each segment of width, depth and average velocity of flow. 44. If we assume that the velocity varies sinusoidally along the wing path, the maximum velocity is twice as high as the average velocity . 45. Average velocity is 92 93 mph and he normally likes to use it when he gets ahead in a count as a strikeout pitch.46. The ratio of the velocity of a species of particle to the average velocity of the fluid is called the " retention ratio ". 47. Average velocity is a vector quantity and is net displacement divided by time, and can be zero if you return to the start ."48. The kids have instantaneous velocities, but after colliding with each other and bouncing back to their seats the average velocity of the kids is zero. 49. Thus, at a given temperature, the lighter gasses are more likely to escape than the heavier gasses, as they will have a higher average velocity . 50. I can even figure out that unless a body of water is moving, the net average velocity of its particles will have to be zero.
