- #1
snash1057
- 15
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A flight attendant pulls her 70.0 N flight bag a distance of 269 m along a level airport floor at a constant speed. The force she exerts is 32.0 N at an angle of 52.0° above the horizontal.
(a) Find the work she does on the flight bag.
_5299_J
(b) Find the work done by the force of friction on the flight bag.
____J
(c) Find the coefficient of kinetic friction between the flight bag and the floor.
_____
i found (a) by using W=fdCos, 32.0 x 269 x Cos(25) = 5299 J
but for part (b) and (c) i cannot understand what formula to use or how to find an answer for that matter
(a) Find the work she does on the flight bag.
_5299_J
(b) Find the work done by the force of friction on the flight bag.
____J
(c) Find the coefficient of kinetic friction between the flight bag and the floor.
_____
i found (a) by using W=fdCos, 32.0 x 269 x Cos(25) = 5299 J
but for part (b) and (c) i cannot understand what formula to use or how to find an answer for that matter