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 astronauts, the ISS itself and other objects in Earth orbit arenât floating, they are actually falling. But they donât fall to the Earth because of their huge orbital velocity. Instead, they fall around Earth. Objects in Earth orbit have to travel at least 28,160 km/h (17,500 mph). So, as they accelerate towards the Earth, the Earth curves away beneath them and they never get any closer. Since the astronauts have the same acceleration as the space station, they feel weightless.