The cart of mass 10kg shown moves without frictional loss on a level table. A 10N force pulls on the cart horizontally to the right. At the same time, a 30N force at an angle of 60° above the horizontal pulls on the cart to the left. What is the magnitude of the horizontal acceleration of the cart?
(A) 0.5 m/s2
(B) 1.6 m/s2
(C) 2.0 m/s2
(D) 2.5 m/s2
(E) 2.6 m/s2
