Question

1}what is zero vector/null vector:?​

Answer 1

Let us consider and easy example. We walk down the street following North direction for 1 km, and then again come back to our home following the South direction for the same distance obviously.

Evidently North and South of just in the opposite direction as well as East and West is. And either cases we have walked for 1 km itself. which indicates that the magnitude of distance covered is actually 2 kms. But, according to vector algebra we are just at the same position from where we started, or in other words the final position and initial position coincide.

So as per vector algebra displacement here gets nullified, but you are still facing the southern direction.

Here is where the significance of zero vector lies.

Even when the magnitude is zero you still get the direction in it.

So basically,

A vector with zero magnitude but the certain direction is known as a null vector.

Hope helps....

Answer 2

"ZERO VECTOR"

□VECTOR HAVING ZERO MAGNITUDE ARE CALLED ZERO OR NULL VECTORS.IT IS DENOTED BY VECTOR O.✔✔

□IN CASE OF A ZERO VECTOR,INITIAL AND THE FINAL POINT COINCIDE AND ITS DIRECTION IS INDEPENDENT.✔✔

EXAMPLES:

#THE VELOCITY VECTOR OF A STATIONARY PARTICLE, THE ACCELERATION VECTOR OF AN OBEJECT MOVING WITH UNIFORM VELOCITY ARE ZERO VECTORS.✔✔