Question

explain scalar and vector quantities write the method of writing vector give the definition of unit
vector

Answer 1

Scalar quantity:-

Any object which has a specified magnitude is called scalar quantity.

Ex:-Distance,Charge,Speed,Time etc...

=> It can be added or subtracted by arithmetically like 8 kg + 5 kg = 13 kg

Vector quantity:-

Any object which has both magnitude and direction is called vector quantity.

Ex:-Velocity,Acceleration,Force,Displacement etc...

=> It can be added or subtracted by the process vector algebra.