Linear Kinetics Flashcards
1
Q
Definition of a force
A
A push or a pull producing an effect
2
Q
The factors that influence a force
A
- Magnitude of force
- Point of application
- Relative position
3
Q
Internal force
A
Exerted by the system
4
Q
External force
A
Any force acting on a system
5
Q
Acceleration due to gravity (with units)
A
-9.81 m/s/s
6
Q
Newton’s first law
A
Law of inertia: Every body remains in a constant state of velocity unless acted on by an external force
7
Q
Newton’s second law
A
Law of momentum: A force applied to a body causes an acceleration
8
Q
Momentum (M)
A
Quantity of motion
9
Q
Formula for momentum
A
M = mass x velocity
10
Q
Newton’s third law
A
Law of reaction forces: for every action there is an equal and opposite reaction
11
Q
Impulse
A
Change in momentum
