Question

If Ā= 3î +4jand B = 6î +8h and A and B are the + magnitudes of A and B , then which of the following is not true? (1) ÄxB=0 (2) A 1 B 2 (4) A = 5 (3) A.B = 48 ​

Answer 1

Answer:

option 3) is not correct

Explanation:

use commutative and associative properties of vectors

because option 1) can be viable using vectors properties

option 2) can be true because you have to check

option3) i think its correct because A.B will be 50 and not 48

option-4) it can be true due to vector addition and pythagoras theorem

-) I am not certain but i think option c is correct

Answer 2

Answer:

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