PHY 1151

Doug Davis

Ch 3, Vectors in Physics

D3.1

Graphically, find the resultant of adding these three vectors. That is, graphically find R = A + B + C.

Is that the same as R₁ = A + C + B?

What about R₂ = B + C + A?

And what abour R₃ = C + B + A?

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D3.2 Find the components of the following vectors:

A = 10 km, 60° W of N

B = 25 km, 37° E of S

C = 10 km, 53° W of S

As always, sketches are important. Draw these vectors first; only then should you

begin your calculations.

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D3.3 Now add the components that we calculated in Problem D3.2 above.

What is the Resultant?