Ch4 Forces in action

Question 1

what is the definition of a moment

Answer 1

force multiplied by the perpendicular force from the pivot to the line of action of the force

Question 2

Definition of force couple

Answer 2

force couple consist of 2 equal and opposite forces acting on the same plane

Question 3

Archimedes principle

Answer 3

The upthrust acting on a body submerged in a liquid is equal the the weight of the liquid displaced

Question 4

Archimedes equation

Answer 4

U=W
U=mg m=Pv
U=PVg V=Ah
U=PAhg