Answer:
Option A and B are the correct answer.
Step-by-step explanation:
We have vector u has a magnitude of 5 units, and vector v has a magnitude of 4 units.
We need to find possible magnitude of u +v.
Consider u and v are in same direction, it will give maximum magnitude possible.
u + v = 5 + 4 = 9, so 9 is the maximum magnitude.
Consider u and v are in opposite direction, it will give minimum magnitude possible.
u + v = 5 - 4 = 1, so 1 is the minimum magnitude.
So magnitude of u + v lies in between 1 and 9.
Here option A, B lies in between A and B
Option A and B are the correct answer.
