# Question

Using the triangle method, show graphically that

(a) A-bar + B-bar = B-bar + A-bar and

(b) If A-bar – B-bar = C-bar, then A-bar = B-bar + C-bar

(a) A-bar + B-bar = B-bar + A-bar and

(b) If A-bar – B-bar = C-bar, then A-bar = B-bar + C-bar

## Answer to relevant Questions

(a) Is vector addition associative? That is, does (A-bar + B-bar) + C-bar = A-bar + (B-bar + C-bar)? (b) Justify your answer graphically. Two boys are pulling a box across a horizontal floor as shown in Fig 3.26. If F1 = 50.0 N and F2 = 100N, find the resultant (or sum) force by (a) The graphical method and (b) The component method. For the vectors shown in Fig. 3.28, determine A-bar + B-bar + C-bar A block weighing 50 N rests on an inclined plane. Its weight is a force directed vertically downward, as illustrated in Fig. 3.30. Find the components of the force parallel to the surface of the plane and perpendicular to ...A ball with a horizontal speed of rolls off a bench 2.0 m high. (a) How long will the ball take to reach the floor? (b) How far from a point on the floor directly below the edge of the bench will the ball land?Post your question

0