Question

Define dot product of two vectors. Give an example of phyics quantity which are the dot product of two vector quantities. Define scaler and vector physical quantities.
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Answer 1

Answer:

Explanation:Dot product is also known as scalar product because the dot product of 2 vectors always gives a scalar quantity. Let A and B be 2 vectors, A.B=AB costheta.

Work is a scalar quantity and it is a dot product of 2 vector quantities(force and displacement).

Scalar quantity is that quantity which depends on magnitude but not on direction. Vector quantity is that quantity which depends both on magnitude as well as direction and also follows the vector laws of addition.