How does multiplying a vector by a scalar value of -pi/4 change the vector?

A.) The vector will change direction and increase in magnitude.
B.) The vector will change direction and decrease in magnitude.
C.) The vector will not change direction but will increase in magnitude.
D.) The vector will not change direction but will decrease in magnitude.

4 answers

same type of question as your next one, only the scalar has changed.
B. The direction will change 180o, and the magnitude will decrease.
I'm assuming you mean -pi/4.
Unit 5 Lesson 8: 5/13/2022

1. The vector will change direction and decrease in magnitude.
2. 56 ft lbs.
3.(-3,-2)
4. u= -5sqrt29/29i - -2sqrt29/29j
5. 56
6.11.4 ft./sec.
7. Written... equal on directions and magnitude.
8. (-10, -16)
8B. 2sqrt89
9. (-14, -21)
9B. 7sqrt13
10. (-18,-26)
10B. 10sqrt10
11. 5, 144 degrees
12. 173 degrees
13. (1/6, -1/5)
14. 159 mph
15. 10j
16. 2sqrt6
17. 98.4 degrees
18. written= dot concept and answer if 26.56 degrees.
warning the mix up the questions they arnt always the same
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