Biomechanical Principles Flashcards

1
Q

What are Newton’s 3 laws of linear motion ?

A

1st law – law of INERTIA
2nd law – law of ACCELERATION
3rd law – law of ACTION/ REACTION

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2
Q

Explain Newton’s law of Inertia

A

An object will remain at constant velocity unless an external force is applied to it

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3
Q

Explain Newton’s law of Acceleration

A

The size and the direction of the force applied determines the size and direction of the acceleration (F=ma)

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4
Q

Explain Newton’s law of Action/Reaction

A

To every action there is an equal and opposite reaction

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5
Q

What is the centre of mass ?

A

The point of balance of a body (concentration of mass)
Generally the CoM is in between the hip region

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6
Q

What factors affect stability ?

A

The height of the centre of mass
Position of the line of gravity
Area of the support base
Mass of the performer

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