Question

Define unit vector and give its physical significance.

Answer 1

Here the direction can be defined as the unit vector in that particular direction. So here you can understand the significance of the unit vector. Without direction vector, you cantdefined the vectors. ... The resultant of two unit vectors is also a unit vector

Answer 2

Hii buddy,

◆ Unit vector -

• A vector with magnitude unity but having specific direction is called unit vector.
• It's calculated by dividing given vector by its magnitude.

# Physical significance of unit vector -

• It represents spatial direction of the particular quantity.
• Any vector quantity can be represented by product of its magnitude with unit vector.

Hope this helps you. Thanks for asking..