10. Foundations. Newtons Laws & Forces

Which of these forces are contact forces?

• Gravity

• Air resistance

• water resistance

• friction

• Muscular

"A body will remain in it's current state of motion unless acted upon by an external force" defines which of Newton's Laws?

• Law of Inertia

• Law of Acceleration

• Law of Reaction

• Law of Attraction

A heavier object has a larger inertia.

• true

• false

Mass x velocity =

Forces are equal and opposite, not the effects of the forces

• True

• False

What are the two ground reaction forces responsible for movement?

• Vertical GRF

• Horizontal GRF

• Mediolateral GRF

• Magnitude GRF

The resultant ground reaction force takes into consideration what factors?

• Movement

• Magnitude

• Mediolateral force

• Direction

Force measured in Newtons factors in weight and gravity.

• True

• False