Question

The direction of a vector a is reversed what are the values of

Answer 1

Solution:

The value of ΔA=A2−A1  

Given A1=A,A2=−A  

∴ΔA=−A−A=−2A  

Also |A|=|−A|  

∴Δ|A|=0

Answer 2

Answer:

Hello mates the correct answer is zero

Explanation:

As both are equal 1-1=0