Apeople-moving conveyor-belt moves a 600-newton person a distance of 100 meters through the airport.
a. how much work was done?
b. the same 600-newton person lifts his 100-newton carry-on bag upward a distance of 1 meter. they
travel another 10 meters by riding on the “people mover.” how much work was done in this situation?

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.