6. Considering two vectors A and B subtended by an angle 0, the magnitude of A.B isa)|Ä||B|cos®b) |Ä||E]stn©cosed) none of these7. Ifi is the unit vector of the X- axis thena) ixī = -1b) ixĩ = 0c) ixi = 1d) ixi = 28. The average velocity of a moving particle is given by:Axa) 25b)Atd) NoneAx9. A ball is thrown vertically upwards, at maximum high the velocity is:a) Minimumb) 0c) maximumd) Vo10. In the one-dimensional motion with constant acceleration (a), the final velocity is:a) v=Vo - atb) v=Vo + atc) v=Vo + at?d) v=v, - at?

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Description: 6. Considering two vectors A and B subtended by an angle 0, the magnitude of A.B isa)|Ä||B|cos®b) |Ä||E]stn©cosed) none of these7. Ifi is the unit vector of the X- axis thena) ixī = -1b) ixĩ = 0c) ixi = 1d) ixi = 28. The average velocity of a moving

Using the definiton of dot product,cross product and average velocity we have.

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6. Considering two vectors Ā and B subtended by an angle 8, the magnitude of Ā.B is a기A|삐cose b) |Ã||B|sin® d) none of these 7. Ifi is the unit vector of the X- axis then .. a) ixi = -1 b) ixi = 0 c) ixî = 1 d) ixi = 2 8. The average velocity of a moving particle is given by: a) 25 d) None At 9. A ball is thrown vertically upwards, at maximum high the velocity is: a) Minimum b) 0 c) maximum d) Vo 10. In the one-dimensional motion with constant acceleration (a), the final velocity is: a) v=V, - at b) v=V, + at c) v=v, + at? d) v=V, - at² |当

6. Considering two vectors Ā and B subtended by an angle 8, the magnitude of Ā.B is a기A|삐cose b) |Ã||B|sin® d) none of these 7. Ifi is the unit vector of the X- axis then .. a) ixi = -1 b) ixi = 0 c) ixî = 1 d) ixi = 2 8. The average velocity of a moving particle is given by: a) 25 d) None At 9. A ball is thrown vertically upwards, at maximum high the velocity is: a) Minimum b) 0 c) maximum d) Vo 10. In the one-dimensional motion with constant acceleration (a), the final velocity is: a) v=V, - at b) v=V, + at c) v=v, + at? d) v=V, - at² |当

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

6. Considering two vectors A and B subtended by an angle 0, the magnitude of A.B is
a)|Ä||B|cos®
b) |Ä||E]stn©
cose
d) none of these
7. Ifi is the unit vector of the X- axis then
a) ixī = -1
b) ixĩ = 0
c) ixi = 1
d) ixi = 2
8. The average velocity of a moving particle is given by:
Ax
a) 25
b)
At
d) None
Ax
9. A ball is thrown vertically upwards, at maximum high the velocity is:
a) Minimum
b) 0
c) maximum
d) Vo
10. In the one-dimensional motion with constant acceleration (a), the final velocity is:
a) v=Vo - at
b) v=Vo + at
c) v=Vo + at?
d) v=v, - at?

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