A physics student is pulling on a 20 kg box that is sliding on the floor. The student applies a pulling force of 100 N using a rope at angle 30o
from the horizontal. The coefficient of kinetic friction between the box and the floor is 0.4. The acceleration of the box is closest to?
Physics - Elena, Sunday, November 4, 2012 at 3:38pm
a= (Fcosα- μmg)/m