I need this fast! One day, you decide to push a box around on the living room carpet just for kicks. You push it from one end of the living room to another, a distance of 20 meters (that's some house you live in!), applying a constant force of 5 N. It takes you 10 seconds to push the box across the living room. What is your average power output?

In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm