Question

7. A zero or a null vector is a vector, which has zero magnitude and
arbitrary direction. It is represented by 0. The need of a zero vector
arises from the fact that the difference of vectors has to be a vector.
Thus, if a vector is added to its negative vector the result has to be a
vector. Since the magnitude of such an operation is zero, therefore the
vector is called zero vector. Now answer the following questions:
i) Vector P is added to its negative vector. The resultant vector is
a) P Vector itself
b) negative of vector P
c) zero vector
d) none of these
ii) A vector Pus subtracted from null vector. Then the direction of the
result is:
a) same as that of P'
b) same as that of - B
s) arbitrary vector
d) no direction

Answer 1

Answer:

i) c: zero vector

ii) b: same as that of -P