Question

two forces each equal to f act as shown in figure the resultant is

Answer 1

The net force will be F !!

Answer 2

Answer:

The correct answer is F.

Explanation:

From the above diagram, we can consider that:

The angle between two forces will be

ϴ = $120^{0}$

$\alpha = 180^{0} -$ ϴ = $60^{0}$

we are going to apply the formula:

$R = \sqrt{A^{2}+ B^{2} -2AB cos \alpha$

Here, $A =F^{2} , B =F^{2}, AB+F^{2} , cos \alpha = 60^{0}$

$R=\sqrt{F^{2} +F^{2} -2F^{2} * cos 60^{0}$

Here, $cos 60^{0} = \frac{1}{2}$

$R = 2F^{2} - 2F^{2} *\frac{1}{2}$

$R= \sqrt{F^{2}$

Therefore, when we cancel the square root, we get the value,

R = F

#SPJ3