Question

Two forces of magnitude 10N and 10N can't produce a resultant of 1) 0N 2) 20N 3)15N 4)none ??

Answer 1

`bbF = underbrace(bbF_1)_(F_1 =10N) + underbrace(bbF_2)_(F_2 = 10N)`

By the Triangle inequality :

• `abs(bbF_1 + bbF_2 ) le abs(bbF_1 )+ abs( bbF_2 )`

Which means that:

• `abs(bbF_1 + bbF_2 ) le 20`

So the answer is 4), "None of the above"

Assuming that is what that option means.