Question

which picture correctly shows how force is applied in a wedge? a. image of wedge with forces b. image of wedge with forces axe axe which pulley system would require the least amount of force to move a heavy object? a. image of pulley system b. image of pulley system c. image of pulley system

Explanation:

Step1: Analyze wedge force application

A wedge (like an axe) works by applying a downward/axial force, which is converted into outward splitting forces. Option A shows downward input force and outward output forces, matching how an axe splits material. Option B has inward and upward forces, which is incorrect.

Step2: Analyze pulley system force

The force needed to lift a heavy object with pulleys is $\frac{W}{n}$, where $W$ is the object weight and $n$ is the number of supporting ropes. System C has the most supporting ropes, so it requires the least force. Systems A and B have fewer supporting ropes, requiring more force.

Answer:

1. A. Axe (with downward input force and outward output forces)
2. C. The pulley system with multiple supporting ropes lifting the heavy object