Physics 211 Spring 2009 Syracuse University Homework Problem Set 2 p.1
Physics 211 Problem Set 2 Due Friday, 01/30/09
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Please submit your homework on this sheet. If you need more space than is available,
please attach additional sheets of paper.
1. Each of the displacement vectors A and B shown below has a magnitude of 3 m.
i. Find graphically:
(a) A + B (b) A โ B
(c) B โ A (d) A โ 2B
ii. In addition to the problem as given in the text, write down the x and y components of
vectors A and B, and find components of the resultant vector in each part obtained by
algebraic calculation. Check consistency of the values of these components with the
resultant vectors obtained graphically.
Ax = Bx =
Ay = By =
(a) (b)
(A+B)x = (A-B)x =
(A+B)y = (A-B)y =
(c) (d)
(B-A)x = (A-2B)x =
(B-A)y = (A-2B)y =
y
B
3 A
3
300
x
y
B
3 A
3
300
x
y
B
3 A
3
300
x
y
B
3 A
3
300
x
