A

10lb

particle has forces of

F_(1)=(3i+5j)lb

and

F_(2)=(-7i+9j)lb

acting on it. Determine the acceleration of the particle.\ (A)

(-0.4i+1.4j)f(t)/(s^(2))

\ (B)

(-4i+4j)f(t)/(s^(2))

\ (C)

(-12.9i+12.9j)f(t)/(s^(2))

\ (D)

(13i+4j)f(t)/(s^(2))

6. A 10lb particle has forces of F1=(3i+5j)lb and F2=(7i+9j)lb acting on it. Determine the acceleration of the particle. (A) (0.4i+1.4j)ft/s2 (B) (4i+4j)ft/s2 (C) (12.9i+12.9j)ft/s2 (D) (13i+4j)ft/s2