Biomechanics - Newton's Laws of motion Flashcards
1
Q
What is newtons first law of motion?
A
Law of inertia:
A body will remain at rest or in a state of constant motion unless acted upon by an external force
2
Q
Inertia?
A
The tendency of an object to resist change in its state of motion. The greater the inertia of an object the more difficult it is to move. Inertia is related to mass
3
Q
What is newtons second law of motion?
A
The rate of acceleration of a body is proportional to the force applied to it in the direction in which the force is applied
Force = mass x acceleration F=Ma (N)
4
Q
What is newtons third law of motion?
A
For every action there is an opposite and equal reaction
e.g. pushing off the wall in swimming
