Quiz 2 Chapter 13-15

What is kinetic?

• Equilibrium of a body that either at rest or moves with constant velocity

• Deals with the accelerated motion of a body

• Study of the relation between forces & acceleration they cause

• Treats only the geometric aspects of the motion

A free-body diagram showing................... & kinetic diagram showing .............

• all external forces applied to particle & the particle’s inertial force, ma

• all external forces applied to the particle & all the accelerations

• the particle’s inertial force, ma & all external forces applied to particle

• the friction forces & all the particle's inertial force, ma

If the downward component of force P increases the normal force N, which in turn ................................

• decreases the friction force F that you must overcome

• create no friction force F that you must overcome

• equal the friction force F that you must overcome

• increases the friction force F that you must overcome

If the work done by a conservative force on a particle as it moves between two positions is –10 N·m, the change in its potential energy is _______

• 0 N.m

• -10 N.m

• +10 N.m

• None of the above

The power supplied by a machine will always be

_________ the power supplied to the machine.

• less than

• equal to

• greater than

• A or B

Which parameter is not involved in the linear impulse and momentum equation?

• Velocity

• Displacement

• Time

• Force

Under what condition is the energy lost during a collision maximum? 

•    e = 1.0

• e = 0.0

• e = -1.0

• Collision is non-elastic

If a particle moves in the x - y plane, its angular momentum vector is in the

• x direction

• y direction

• z-direction

• x-y direction

If there are no external impulses acting on a particle

• only linear momentum is conserved.

• only angular momentum is conserved.

• Both linear momentum and angular momentum are   conserved.

• Neither linear momentum nor angular momentum is conserved

Name three methods for the analysis of the kinetics of particle problems.