a vector of magnitude 100 and is inclined at an angle of 30 degree to ...
Introduction:
In this problem, we are given two vectors: Vector A with a magnitude of 100 and Vector B with a magnitude of 50. Vector A is inclined at an angle of 30 degrees to Vector B. We need to calculate the magnitude of the dot product and the cross product of these two vectors.
Dot Product:
The dot product, also known as the scalar product, of two vectors A and B is a scalar value obtained by multiplying the magnitudes of the two vectors and the cosine of the angle between them. The formula for the dot product is:
A · B = |A| |B| cosθ
Where:
- A · B represents the dot product of vectors A and B
- |A| and |B| represent the magnitudes of vectors A and B, respectively
- θ represents the angle between vectors A and B
Magnitude of the Dot Product:
In this case, we have Vector A with a magnitude of 100 and Vector B with a magnitude of 50. The angle between them is 30 degrees. Plugging these values into the formula, we get:
A · B = 100 * 50 * cos(30°) = 5000 * 0.866 = 4330
Therefore, the magnitude of the dot product of Vector A and Vector B is 4330.
Cross Product:
The cross product, also known as the vector product, of two vectors A and B is a vector that is perpendicular to both A and B. The magnitude of the cross product is given by:
|A x B| = |A| |B| sinθ
Where:
- A x B represents the cross product of vectors A and B
- |A| and |B| represent the magnitudes of vectors A and B, respectively
- θ represents the angle between vectors A and B
Magnitude of the Cross Product:
In this case, to calculate the cross product, we need to determine the direction of the resultant vector. Since the angle between Vector A and Vector B is 30 degrees, and Vector A is inclined to Vector B, the cross product will be perpendicular to the plane containing both vectors. The magnitude of the cross product is given by:
|A x B| = |A| |B| sin(θ) = 100 * 50 * sin(30°) = 5000 * 0.5 = 2500
Therefore, the magnitude of the cross product of Vector A and Vector B is 2500.
Summary:
- The magnitude of the dot product of Vector A and Vector B is 4330.
- The magnitude of the cross product of Vector A and Vector B is 2500.
- The dot product is a scalar value, while the cross product is a vector.
- The dot product measures the similarity or projection of one vector onto another.
- The cross product measures the perpendicularity or the creation of a new vector perpendicular to both input vectors.
a vector of magnitude 100 and is inclined at an angle of 30 degree to ...
2500√3 and 2500 respectively
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