A pair of scissors has its blades 15 cm long, while its handles are 7.5 cm long. What is its mechanical advantage?
A pair of scissors has its blades 15 cm long, while its handles are 7.5 cm long. What is its mechanical advantage ?
A force of 5 kgf is required to cut a metal sheet. A pair of shears used for cutting the metal sheet has its blades 5 cm long, while its handles are 10 cm long . What effort is needed to cut the sheet?
A force of 5 kgf is required to cut a metal sheet. A shears used for cutting the metal sheet has its blades 5 cm long, while its handles are 10 cm long . What effort is needed to cut the sheet ?
Scissors for cutting cloth have blades that are longer than its handles; but shears for cutting metals have blades are shorter than its handles. This is because