Question:

Two roommates are trying to get an armchair into their apartment. They found the armchair did not fit through the front door, so they decide to take it below their patio. One of them is pulling straight upwards with 250 N of force. The other has pressed

Last updated: 7/27/2022

Two roommates are trying to get an armchair into their apartment. They found the armchair did not fit through the front door, so they decide to take it below their patio. One of them is pulling straight upwards with 250 N of force. The other has pressed

Two roommates are trying to get an armchair into their apartment. They found the armchair did not fit through the front door, so they decide to take it below their patio. One of them is pulling straight upwards with 250 N of force. The other has pressed the armchair against a vertical wall with a force directed upwards at an angle of 30° with respect to the horizontal, as shown. That pushing force has a total magnitude of 300 N. If the armchair is 34 kg, and it is sliding up the wall with an acceleration of 0.5 m/s², what is the coefficient of kinetic friction between the chair and the wall?