Question

i) The resultant of two forces 10 N and 15 N
acting along + x and - X-axes respectively,
(A) 25 N along + x-axis
(B) 25 N along - x-axis
(C) 5 N along + x-axis
(D) 5 N along - x-axis​

Answer 1

Answer:

c is correct answer.5along +X -axis

Answer 2

Answer:

(D)

Explanation:

Since, the vectors are in opposite direction;

R =

$\sqrt{ {x}^{2} + {y}^{2} + 2xy \cos( 180) } = \sqrt{x {}^{2} + {y}^{2} - 2xy}$

$\sqrt{100 + 225 - 300} = 5$

The resultant will be closer to the vector of larger magnitude.

Thus, 5N along -ve X-axis.