Yes, if the angle between the two vectors is more than 90o but less than 2700. (cosΘ is negative)
Solution
Given vectors are
a= (3,-1,-4), b=(-2,4,-3) and c=(-5,7,-1)
a-2b+c = (3,-1,-4) -2(-2,4,-3)+(-5,7,-1)
= (3,-1,-4) -(-4,8,-6)+(-5,7,-1)
={3-(-4)+(-5) , -1-8+7, -4-(-6)+(-1)}
= (2,-2, 1)
I)...
Consider two vectors P and Q with an angle θ between them. The sum of vectors P and Q is given by the vector R, the resultant sum vector using the parallelogram law of vector addition. If the resultant vector R makes an angle ϕ with the vector P, then the formulas for its magnitude and direction are:
Let us first see the...
Torque has the dimension of force times distance, symbolically T2L2M. Although those fundamental dimensions are the same as that for energy or work, official SI literature suggests using the unit newton metre (Nm) and never the joule.