The lever is a movable bar that pivots on a fulcrum attached to a fixed point. ... It shows that if the distance a from the fulcrum to where the input force is applied (point A) is greater than the distance b from fulcrum to where the output force is applied (point B), then the lever amplifies the input force.
pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt, or transfer of power between the shaft and cable or belt.
Answer:
Explanation:
For #1:
People with a high BMI might have a large amount of muscle mass, not necessarily fat.
#2:
People with extremely high BMIs are at risk because an extremely high BMI can indicate obesity.
