Vector question Please Help?
1) What is the dot product of the magnitude A = (2.0x^2)i - (4x)j + (5)k and the magnitude B = (11.0)i + (2.5x)j
1) What is the dot product of the magnitude A = (2.0x^2)i - (4x)j + (5)k and the magnitude B = (11.0)i + (2.5x)j
Pearlsawme
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In the i direction the product is 20*11x²
In the j direction the product is 4*2.5 x²
In the k direction the product is 0
Resultant of these two is √ [(220 x²)² + (10 x²)² = 10.72 x²
Dot product is 10.72 x²