Calculate the terminal speed for a pollen grain falling through the air using the drag f...

Calculate the terminal speed for a pollen grain falling through the air using the drag force Equation 3.20. Assume the pollen grain has a diameter of 1 mm and a density of If this grain is released from the top of a tree (height 10 m), estimate the time it will take to fall to the ground. Hint: The pollen grain will reach its terminal speed very quickly and will have this speed for essentially the entire motion. Your answer will explain why pollen stays in the air for a very long time.

(reference equation 3.20)