6)
a
F=40 N
mg
N
N
mg
F=40 N
x-axis
y-axis
30
o
30
o
30
o
mgcos30
o
mgsin30
o
a
Along the x-axis:
mgsin30
o
-F=ma
m(gsin30
o
-a)=F
m=F/(gsin30
o
-a)=40/(9.80x0.5-2.0)=14 kg
