A lady pulls a suitcase, with a mass of 20 kilogram, across the floor by applying a force T to a chain that makes an angle of 30o, measured from the horizontal. The static coefficient of friction is 0.20, and the kinetic coefficient of friction is 0.10 between the floor and the suit case.
Evaluate what is the magnitude of the applied force T that is needed to start the suitcase moving? And once the suitcase is moving, find its acceleration if the applied force is the same as in the first question?