The scalar product of vector = 3.00 + 2.00 and vector is 10.0. Which of the following vectors could be vector ?

Explanation:

Let us assumed that, vector a is 3i+2j and another vector is b. The scalar product of vector 3i + 2j and b is 10. Let

b = xi+yj

ATQ,

Now we can find vector b using hit and trial method i.e. if x = 2, y = 2 and if x = 4 and y = -1.

Then vector b can be :

or

it becomes positively charged by charging it

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explanation: