Dynamics Chapter 1

Branch of mechanics which deals with the study of bodies in motion

Who derived the Laws of motion and served as the Foundation of Dynamics

This law states that the force acting on a body is equal to the rate of change of the body’s momentum.

who made careful observations concerning bodies in free fall, motion on an inclined plane, and motion of pendulum

heavy bodies fall more rapidly than light bodies. True or False

Who invented the pendulum clock and in what year?

Newton’s famous work was published in the first edition of _____.

motion of a particle or body without consideration of the forces causing the motion.

branch of mechanics that relates the force acting on a body to its mass and acceleration.

usually denotes an object of point size

is a body whose changes in shape are negligible

a body for which the deformations can be neglected with no loss of accuracy in the analysis of motion

the motion of a particle along a staright line

defined as the change in the position of a particle

Magnitude of velocity

What is the effective force on a particle?

for every force there is an equal and opposite reaction

If a particle is accelerated by a resultant force, this reaction is called?

Inertia Force is equal and directed reaction to the resultant force acting on a particle. True or False

If the inertia force is condidered to act on a particle together with the resultant force, the particle will be in ____

the particle is at rest or is moving with constant velocity

Alternative form of Newton’s second law of motion.

Who and when was D’Alembert’s Principle formulated?

F-ma=0

expresses the relation between the external forces applied to a system of particles and the effective force on each particle of the system

all particles will describe horizontal circular arcs about the vertical centroidal axis

since resultant can be transformed into a force acting through the gravity center plus a couple it can be seen that the motion in this case will be a combination of translation and centroidal rotation

if the direction of R varies, although continuing to pass through the gravity center, so will the motion of the body, resulting in a curved path motion known as

if the direction of R is constant, the motion of the body follows a straight-line path and is called