Question

Scissors used to cut iron sheet has longer wedge than the scissor used to cut cloth. why

Answer 1

Answer:

ans

Explanation:

For scissor, small movement at effort(at handle) should make long movement of load arm , so that it can cut longer lengths of cloth/paper. Hence blades are longer than handle. But in metal cutting shear, we need large mechanical advantage to overcome the resistive load while cutting metal sheets.