Class 3 - The Forceplate

Question 1

what is the unit of newtons?

Answer 1

(kgm)/s^2

Question 2

Which forces should you care about in movement diagnosis? (3)

Answer 2

Weight = the pull of mass towards centre of earth
- acts vertically downwards, so will be a negative value
Reaction Forces = the force that the ground and other external surfaces exert on us
Friction = the ground reaction force can be resolved in two components; force normal and tangential. Tangential force is also called friction and is very important in sport