Homework Answers
a)
From Newton's second law
(3+9+5) = 3a
a=17/3 =5.67 m/s2 =5.7 m/s2
b)
3+9-5 =3a
a=7/3 =2.33 m/s2
c)
In X-direction
Fx = 9-5 =4 N
In Y-direction
Fy=3 N
Magnitude
F=sqrt[42+32] =5 N
Direction
a=5/3 =1.67 m/s2 =1.7 m/s2
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