For this qustion I choose a second class lever. In a second-class lever, the wei

Question

For this qustion I choose a second class lever.

In a second-class lever, the weight (resistance) is located between the axis (fulcrum) and the force (figure 1.22a). The most obvious example is a wheelbarrow, where a weight is placed in the bed of the wheelbarrow between the wheel (axis) and the hands of the person using the wheelbarrow (force). In the human body, an example of a second-class lever is found in the lower leg when someone stands on tiptoes (figure 1.22b). The axis is formed by the metatarsophalangeal joints, the resistance is the weight of the body, and the force is applied to the calcaneus bone (heel) by the gastrocnemius and soleus muscles through the Achilles tendon. Axis Force Resistance Body Force Axis

Explanation / Answer

The second class levers are designed to lift the maximum force. In second class lever the load is between the effort and fulcrum. When the fulcrum is away from effort maximum force is generated. Example for 2nd order lever is a man standing on toes.

Effort is always located where the muscle originates.

In second class lever range of motion and speed are less

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