Question

Problem Solving

1. An object is displaced 11 meters toward the east and 13 meters toward the north. Find its resultant displacement by graphical method. Use scale, 1cm = 1 meter.

2. Using a convenient scale, say 1 cm = 1 mile, find the resultant of the following vectors graphically: 14 miles at 140° from the positive x-axis, and 10 miles at 35°.

3. Use the polygon method to determine the resultant of the following forces: a) 8 lb at 40°, b) 9 lb at 110°, 11 lb at 160°, and 12 lb at 200°. (Graphical Solution)

4. Applying the Pythagorean Theorem, determine the magnitude of the following forces: 120 kg towards the west along the negative x-axis and 90 kg south. Draw the figure.

Answer 1