Statics- Quizlet

Question 1

Newtons 1st Law

Answer 1

A particle originally @ rest, or moving in a straight line with constant velocity will remain in this state provided the particle is NOT subjected to an unbalanced force.

Question 2

Figure 1-1; Newtons 3 laws of motion
Re-create Figure

Answer 2

Question 3

Newtons 2nd Law

Answer 3

A particle acted upon by an unbalanced force (F) experiences an acceleration (a) that has the same direction as the force and a magnitude that is directly proportional to the force. If F is applied to a particle of mass m, this law may be expresses mathematically as- F=M*a; (This is where the equation W=m*g comes from)

Question 4

Example of Newtons 2nd Law;
Equation for Acceleration?
Equation for Velocity?
Equation for Location?

Answer 4

Question 5

Newtons 3rd Law

Answer 5

The Mutual forces of action and reaction between 2 particles are equal, opposite, and collinear

Question 6

What does Collinear mean?

Answer 6

Lying in the same straight line.

Question 7

Newtons Law of Gravitation Attraction Equation-
Draw Figure—

Answer 7

F=G(m1*m2)/r^2
F= Force of gravitation between 2 particles
G= Universal constant of gravitation (Based on experimental evidence); =66.73X10^-12 (m^3/kg*s^2)
m1*m2= mass of each of the 2 particles
r= distance between the 2 particles

Question 8

This equation is derived from F=m*a

Answer 8

W=m*g
w= weight
m=mass
g=gravity; =9.81 (m/s^2)= 32.2 (ft/s^2)

Question 9

What does SI stand for?
Is weight or mass used for SI? Provide Equation-

Answer 9

International system of units
W=m*g (g=9.81 m/s^2)

Question 10

What does USCI stand for?
This also stands for?
Is weight or mass used for USCI? Provide equation-

Answer 10

U.S. Customary system of units
FPS (Foor Pound Seconds)
m=W/g; (g=32.2 ft/s^2)

Question 11

Converting from USCI to SI
1 lb=
1 Slug=
1ft=

Answer 11

Question 12

(SI) Units for 1 Newton
(USCI) Units for 1 Slug

Answer 12

newton* (n)=kg*m/s^2
slug=lb*s^2/ft