Question

b.How is lifting of an object kept on palm an example of Class 3 lever.
Explain​

Answer 1

Answer:

its very very hard

i don't know sorry

Answer 2

A third class lever system has its applied force situated between load and fulcrum. The biceps muscle inserts at the proximal part of the elbow. As the biceps contracts, it rotates the forearm about the elbow joint, bringing it closer to the body. . Figure shows a simplified lever representation of an arm holding a weighted load, W, in its hand. Other than the weighted load, the forces acting on this system are P , the force generated by the biceps muscle during contraction, and Q , the reactive force at the fulcrum. These forces are oriented at a certain angle with respect to the horizontal axis as shown in figure