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Chapter 3: Q. 5 (page 77)
How would you define the zero vector
A zero vector is a vector length and its all components equal to
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Are the following statements true or false? Explain your answer.
a. The magnitude of a vector can be different in different coordinate systems.
b. The direction of a vector can be different in different coordinate systems.
c. The components of a vector can be different in different coordinate systems.
shows three ropes tied together in a knot. One of your friends pulls on a rope with 3.0 units of force and another pulls on a second rope with 5.0 units of force. How hard and in what direction must you pull on the third rope to keep the knot from moving?
Kami is walking through the airport with her two-wheeled suitcase. The suitcase handle is tilted 40° from vertical, and Kami pulls parallel to the handle with a force of 120 N. (Force is measured in newtons, abbreviated N.) What are the horizontal and vertical components of her applied force?
7. Draw each of the following vectors. Then find its x - and y- components.
a. clockwise from the positive x-axis )
b. above the negative x-axis )
c. counter clockwise from the positive y-axis )
Trace the vectors in FIGURE EX3.2 onto your paper. Then find
(a) and (b)
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