Question

Find the resultant of three vectors acting along the sides of a triangle. S 1) SN 2) 10N 3)0 4) We can sa​

Answer 1

Answer:

Step 1: Conclusion from triangle law of addition

From the triangle law of vector addition,

The resultant must be zero if the sum of two forces ≥ remaining force

Step 2: Analysing options

In all the options except D, the sum of two forces is greater or equal to the remaining force

However, For option D, 10+20=30

30<40

Hence, the resultant can not be zero for option D.

∴ Option D is the correct answer.

Answer 2

Answer: option 2) 10N