resultant of the product of two vectors always gives a vector, true or false? explain.
Answers
HELLO THERE!
The answer to your question depends, whether the product is dot product or cross product.
Consider two vectors, A and B, where A = 3i and B = 3i + 4j.
When you calculate the dot product (scalar product),
A.B = 3i . (3i + 4j)
= 9 (which is a magnitude or value).
So in case of dot product, the resultant is not a vector.
Now, when you do the cross product of the two vectors,
A x B = 3i x (3i + 4j)
= -12k (which has a magnitude and direction, hence is a vector).
So, in case of cross product, the resultant is a vector.
Now, the straight-forward answer to your question is FALSE, because resultant of the product of two vectors does not always give a vector. In case of dot product, the resultant is not a vector.
HOPE MY ANSWER IS SATISFACTORY...
Please correct me if I am wrong :)