physics

1. Vector B is in the third quadrant, therefore its x and y components are negative.
If B's direction is 218 degrees (counter clockwise from the positive x-axis) then which expression best describes B's x-component?
1. B*sin(38)
2. B*cos(38)
3. B*tan(38)
4. B*cos(218)
5. B*tan(218)
6. B*sin(218)

2. There is a vector H with x component = -250[g] and y component = 70[g].
What is the magnitude of H?


1) 4. B*cos(218)

2) sqrt [(250)^2 + (70)^2]= 259.6

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asked by Nisar

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