Question

1. A couple of forces have to satisfy the following THREE criteria:

a.Two forces should act upon same point

b.Two forces should not share a line of action

c.Two forces should have opposite directions

d,Two forces have to be same in magnitude

2. Free-body diagrams (FBD) are diagrams used to show the relative magnitude and direction of all forces acting upon an object in a given situation. Which of the following statements are correct:

  a.Each force arrow in the diagram is labelled to indicate the exact type of force.

  b.Free body diagram does not need to consider the gravity force of the object

  c.The lenght of the arrow in a free-body diagram reflects the magnitude of the force.

  d.The direction of the arrow shows the direction that the force is acting.

Answer 1