Answered

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an
N
What is the sum & in Unit
Vector of the 2
& Vectors
a=4. oi + 3.0j and
vector b=- 13.oi +7.0j What are thee
magnitude and direction of a+bالا​

Sagot :

Explanation:

Given that,

Vector a = 4i+3j

Vector b = -13i+7j

We need to find the magnitude and direction of (a+b). So,

(a+b) = (4i+3j) + (-13i+7j)

= (4i-13i)+(3j+7j)

= -9i+10j

Magnitude of (a+b).

[tex]|a+b|=\sqrt{(-9)^2+10^2} \\\\=13.45[/tex]

Direction of (a+b),

[tex]\tan\theta=\dfrac{10}{-9}\\\\\theta=\tan^{-1}(\dfrac{-10}{9})\\\\\theta=-48.01^{\circ}[/tex]

Hence, this is the required solution.

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