A few days ago
EDisON

A-level physic question.?

A displacement vector has a magnitud of 145m at an angle of 28 aboce the negative x-axis. What is the magnitude and direction of the x- and y- vectors respectively.

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A few days ago
lonelyspirit

Favorite Answer

Ok, you have a vector of magnitude 145 m at an angle of 28 above the negative x-axis:

The x-axis component is = to -145 cosine 28. And the

Y component is 128 * sin 28 . This component is positive in the side of the y axis.

-145*0.88 = -127.6 is the component in the x axis, and 68 is the component in the y-axis.

The vector components may be represented as V = -128i + 68j, at an angle of 152 degrees.

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