when a vector is multiplied by -1 then its.
a.only magnitude will be change
b. only direction will be change
c. both magnitude and direction will change
d. neither magnitude nor direction will change
Answers
Answer:
answer is d ................
Given : Vector is multiplied by -1
To Find : Impacts on Vector
a. only magnitude will be change
b. only direction will be change
c. both magnitude and direction will change
d. neither magnitude nor direction will change
Solution:
Vector has magnitude and direction
Magnitude is always +ve
Vector A can be written as |A|∠θ
|A| is magnitude
∠θ representing direction
On multiplying with - 1
| - A| = | A | Hence no change in magnitude
θ will become -θ
Hence direction will change
So correct answer is only direction will be change
when a vector is multiplied by -1 then its only direction will be changed
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