Introduction to vectors in two quadrants, ground reaction force and the gait cycle

Question 1

how many quadrants are there?

Answer 1

4

Question 2

what are 2 of the quadrants?

Answer 2

negative

Question 3

if you want to work out the angle and N for vectors on two gradients you simply…

Answer 3

add them together after using the usual solution for vectors on both sides.

Question 4

what is newtons 3rd law?

Answer 4

with every action there is an equal and opposite reaction?

Question 5

what is the centre of gravity?

Answer 5

the point associated with the body where all the weight appears to act

Question 6

what does weight=

Answer 6

mg

Question 7

where does ground reaction force act?

Answer 7

Ground reaction force acts though the whole bodies centre of gravity

Question 8

how does an object remain stationary?

Answer 8

an object will remain stationary if all forces acting on the object equal its weight

Question 9

how does an object move?

Answer 9

an object will move if all forces acting on the object equal more than weight

Question 10

what is Fz, Fx and Fy?

Answer 10

vertical, lateral and medial, posterior and anterior