A. j-2
B. 2j-l
C. 2/-3
C. 3/-2
E. 2/ -4
A. if any number of forces acting at a point can be represented by the sides
of a polygon taken in order, then the forces are in equilibrium
B. if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium
C. if a polygon representing forces acting at a point is closed then forces are in equilibrium
D. if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium
E. none of the above
A. balance each other
B. constitute a moment
C. constitute a couple
D. constitute a moment of couple
E. constitute a resultant couple
A. L/2
B. L/3
C. 3L/4
D. 2L/3
E. 3L/8
A. newton
B. pascal
C. kilogram meter
D. watt
E. joule
A. 25
B. 50
C. 100
D. 250
E. 500
A. mechanical advantage is greater than velocity ratio
B. mechanical advantage is equal to velocity ratio
C. mechanical advantage is less than velocity ratio
D. mechanical advantage is unity
E. none of the above