Question

if a vector a is multiplied by n then na is a vector with
A)scalar woth less magnitude than before
B)vector woth less magnitude than before
C)scalar with more magnitide than before
D)vector with more magnitude than before​

Answer 1

Answer:

While adding a scalar to a vector is impossible because of their different dimensions in space, it is possible to multiply a vector by a scalar. A scalar, however, cannot be multiplied by a vector.

Answer 2

Explanation:

A vector is defined by having the following two properties:

Magnitude

Direction

Thus, when a vector is multiplied by any quantity, we can assume that its magnitude and direction will be affected.

Take a vector, v, with magnitude |v| and direction θ.

In this case, where c is a negative scalar and v is the original vector, cv will have the following characteristics:

|cv| = c|v|

Direction = θ + 180°

Hope this makes sense!