Vector Algebra Question 226
Question: The magnitudes of mutually perpendicular forces a, b and c are 2, 10 and 11 respectively. Then the magnitude of its resultant is
[IIT 1984]
Options:
A) 12
B) 15
C) 9
D) None
Show Answer
Answer:
Correct Answer: B
Solution:
- $ R=\sqrt{4+100+121}=15. $
BETA
