Mechanics

Question 1

first class lever (R) and (F) location and direction

Answer 1

joint in middle

force and resistance going down equal on both ends

Question 2

Second class level (R) and (F) location and direction

Answer 2

always have a mechanical advantage

resistance is close to joint going down and force is far away from joint moving up

Question 3

Third class levels (R) and (F) location and direction

Answer 3

always has mechanical disadvantage but has speed advantage

force close to axis will resistance is far from the axis

Question 4

if a force is going in the parrell direction of the axis can it spin about that axis

Answer 4

no