Friday, May 21, 2010

Physics Assistane Anyone? Please and thank you!?

(i's, j's, and k's are i hats, j hats, and k hats)





#6. Vector A has a magnitude of 8 m at an angle of 27° with the x axis Vector B= 3 m i - 5 m j and vector C= -6 m i + 1 m j.


(a) D= A + C


Answer Format: ______ m i + 4.6 m j


(d) vector G such that G - B= A + 2C + 3G


Answer Format: ____ m i + _____ m j





#7. A scout walks 1 km due east from camp, then turns left and walks 0.8 km along the arc of a circle centered at the campsite, and finally walks 0.8 km directly toward the camp


(a)How far is the scout from camp at the end of his walk?


(b) In what direction is the scout's position relative to the campsite?





#8. Find for the vector: magnitude, angle from the + z axis, direction ( in degrees) in the xy plane (counter clockwise from + x axis)


(c) C= -6 i - 6 j + 3 k





# 30. The magnitudes of two force vectors A and B are 33 N and 20 N.


b) Find the largest possible magnitude of A+B.


c) Find the smallest angle between A and B for which the magnitude of A+B is 33 N.

Physics Assistane Anyone? Please and thank you!?
Do your own homework !


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