Engineering Mechanics

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. one point
B. two points
C. plane
D. perpendicular planes
E. different planes

A. newton
B. pascal
C. kilogram meter
D. watt
E. joule

A. kg/cm
B. ata
C. atmosphere
D. mm of wcl
E. newton

A. zeioth order
B. first order
C. second order
D. third order
E. fourth order

A. non-equilibrium
B. partial equilibrium
C. full equilibrium
D. unpredictable
E. none of the above

A. forces
B. independence of forces
C. dependence of forces
D. balance of force
E. resolution of forces

A. kW (kilowatt)
B. hp (horse power)
C. kcal/sec
D. kg m/sec
E. kcal/kg sec

A. Momentum and impulse
B. Torque and energy
C. Torque and work
D. Kinetic energy and potential energy
E. Moment of a force and angular momentum

A. P/2 cos 9/2
B. IP sin 9/2
C. 2P tan 9/2
D. IP cos 9/2
E. Psin 9/2