1) An astronaut in training is placed in a merry-go-round-likedevice that rotates her at high speed in a horizontal circle ofradius 5 m. At what rate does she have to rotate (revolutions persecond) so that her centripetal acceleration is 10g.
2) A box of mass 5 kgis accelerated by a force across a frictionless surface at a rateof 2 m/s2 for 10 s. The work done by the force is?