EMq1 36-70

Moment of inertia of an area about an axis is equal to the sum of moment of inertia about an axis passing through the centroid parallel to the given axis and ____

• area and square of the distance between two par-allel axes

• area and distance between two parallel axes

• square of the area and distance between two par-allel axes

• square of the area and square of the distance be-tween two parallel axes

What is the unit of mass moment of inertia?

• kg-m^4

• kg-m^3

• kg-m

• kg-m^2

The number of independent degrees of freedom is:

• Square root of the square of the difference of total degrees of freedom - number of constrain equations

• Square root of the total degrees of freedom - num-ber of constrain equations

• Total degrees of freedom - number of constrain equations

• Total degrees of freedom - half the number of con-strain equations

What velocity is normally referred to as the derivative of position vector with respect to time?

• Decreasing velocity

• Average velocity

• Instantaneous velocity

• Increasing velocity

What refers to a force by which work done on a parti-cle as it moves around any closed path is zero?

• Natural force

• Virtual force

• Conservative force

• Non-conservative force

When a force causes a change in mechanical energy when it moves around a closed path, it is said to be ____ force.

• natural

• virtual

• conservative

• non-conservative

The following are quantities that describe motion and uses Newton's law of motion and d'Alembert's princi-ple except one. Which one?

• Time

• Mass

• Acceleration

• Force

Which of the following set of quantities that describe motion and uses the principle of work and energy?

• Force, mass, velocity, time

• Force, mass, acceleration

• Force, mass, distance, velocity

• Force, weight, distance, time

Which of the following set of quantities that describe motion and uses the principle of impulse and momen-tum?

• Force, mass, velocity, time

• Force, mass, distance, velocity

• Force, mass, distance, velocity

• Force, weight, distance, time

The principles of kinetics of particles are derived from which law?

• Newton's first law

• Newton's second law

• Newton's third law

• d'Alembert's principle