Question

A flight attendant pulls her 69.1 N flight bag a distance of 280 m along a level airport floor at a constant velocity. The force she exerts is
32.7 N at an angle of 50.2◦ above the horizontal.



Find the work done by the force of friction on the flight bag. Answer in units of J.



Find the coecient of kinetic friction between the flight bag and the floor.

Answer 1

The horizontal component of her force is equal to the force of friction (constant velocity).

workfriction=frictionforce*distance.

Now for the mu, you have to determine the vertical force, which is mg + vertical component of her pulling force.