Kinematics Question 281
Question: The resultant of the two vectors having magnitude 2 and 3 it’s 1. What is their cross product
Options:
A) 6
B) 3
C) 1
D) 0
Show Answer
Answer:
Correct Answer: D
Solution:
$ \sqrt{2^{2}+3^{2}+2\times 2\times 3\times \cos \theta }=1 $
By solving we get $ \theta =180{}^\circ $ \ $ \vec{A}\times \vec{B}=0 $
BETA
