PHL210Y1 Lecture : descartes meditation 4

(a) S


(b) O


(c) H


(d) C


(e) a halogen


(f) N

a force P pulls on a crate of mass (m) that is in contact with arough surface. W represents the weight of the crate. FN representsthe normal force on the crate, and f represents the frictionalforce.

P= 160 N
f= 80 N
w= 196 N
60 degree angle

a) calculate the net force on the crate in the horizontalarea

B) what is the accerelation of the crate along the surface?