How manyuniversities benefitted when an emeritus professor won a distinguished award (which has included NobelPrizes in the past)? The fact of the matter is, given the cost-benefits of granting emeritus status, anyuniversity in question has always been far-and-away the winner.
where g is the acceleration of gravity. The value for g on Earth is 9.8 m/s/s. The above equation can be used to calculate the velocity of the object after any given amount of time when dropped from rest. Example calculations for the velocity of a free-falling object after six and eight seconds are shown below.
The following manual mentions 150 feet per minute as a typical touchdown speed. A vertical speed of 0 is not feasible nor desirable, because descending the last few feet will take forever. For example at VS = 20 fpm, descending the last 10 feet will take .5 minutes during which the aircraft will fly forward about 1 mile!