Question

which of the sets given below may represent the magnitudes of three vectors adding to zero?
a)1,2,8
b)2,3,5
c)4,8,10
d)4,4,4
I need explanation​

Answer 1

Answer:

Option b is the correct option

Explanation:

As we know through triangles law of vector addition if there are three vectors a,b and c then a and b would be in the same order whereas c would in the opposite (please refer the attachment)

So as per the triangles law of vector addition,

c=a+b

or

a+b-c=0

Now in the given options, only option b satisfies this condition

let a=2,b=3,c=5

then

2+3-5=0

Answer 2

Answer

It is only possible if the sum of two vector is equal to third one and opposite to each other .so it is b