Questions 2-3
A 2−kg block slides down a 30∘ incline as shown above with an acceleration of 2m/s2.
3. Which of the following correctly indicates the magnitudes of the forces acting up and down the incline?
(A) 20 N down the plane, 16 N up the plane
(B) 4 N down the plane, 4 N up the plane
(C) 0 N down the plane, 4 N up the plane
(D) 10 N down the plane, 6 N up the plane