Question

) The angle between the two vectors A = 5i + 5j and
B = 51-5j will be​

Answer 1

A.B = AB cos thetha

= ( 5i + 5j ) ( 5i - 5j ) = 50Costhetha

= 0 = cos thetha

thetha = 90 Degrees

Answer 2

Answer:

90°

Explanation:

Concept

The angle between two vectors is the angle between their tails. It can be found either by using the dot product (scalar product) or the cross product (vector product). Note that the angle between two vectors always lie between 0° and 180°.

Given

A=5i+5j

B=5i-5j

Find

Angle between two vectors

Solution

$\vec{A} \cdot \vec{B}=(5 \hat{i}+5 \hat{j}) \cdot(5 \hat{i}-5 \hat{j})=0$

Therefore, $\theta=90^{\circ}$

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