Zero Vector
A vector having zero magnitude and arbitrary direction (not known to us) is a zero vector. It is also known as Null vector.
It cannot represent graphically. It is used for the definition of Subtraction of vectors and Cross Multiplication of Collinear vectors.
It has the properties :
`A+0=A`
`lamda0=0`
`0A=0`
`text(What is the physical meaning of a zero vector?)`
Consider the position and displacement vectors in a plane as shown in Fig. Now suppose that an object which is at P at time t, moves to P′ and then comes back to P. Then, what is its displacement? Since the initial and final positions coincide, the displacement is a -null vector-.
It cannot represent graphically. It is used for the definition of Subtraction of vectors and Cross Multiplication of Collinear vectors.
It has the properties :
`A+0=A`
`lamda0=0`
`0A=0`
`text(What is the physical meaning of a zero vector?)`
Consider the position and displacement vectors in a plane as shown in Fig. Now suppose that an object which is at P at time t, moves to P′ and then comes back to P. Then, what is its displacement? Since the initial and final positions coincide, the displacement is a -null vector-.