Question

Give an example of each of the following?
I. Scalar quantity
II. Vector quantity
III. Unit quantity
IV. A physical quantity which is expressed as vector product of two vectors

Answer 1

1 speed
2 force
4 torque

Answer 2

1- speed and distance
2-force and velocity and displacement
3-unit vectors like icap 'j cap and k^
4-rotational analogue of force i.e. torque