If it takes you 30 seconds to move a chair 20 meters across the floor, using a force of 5 newton’s, how much power did you put out?
a. 3000 joules per second
b. 3.33 joules per second
c.120 joules per second
d. 52 joules per second

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?