Question

a boy can lift a stone up 200N by applying an effort of only 10N. what is the mechanical advantage of the lever. ​

Answer 1

Solution:

$\bold \red{ \: mechanical \: advantage = \frac{load}{effort} }$

$\bold \red{ = \frac{200n}{10n}=20}$

Additional information

Leverage: Load×Load arm = effort ×effort arm

This Question is related to Numerical Based on Mechanical Advantage.

Levers of First order: A lever which has the fulcrum in between the effort (force) and the load is called the level of first order . examples: crowbar, See saw,pair of pliers, beam balance extra.

Levers of second order: A lever which has the load in between the effort and the fulcrum is the level of second order . examples:Wheel barrow, Bottle opener, Nutcracker.

Levers of third order:A lever which has the effort in between the load and the fulcrum is called a lever of third order. examples: fishing rod, Arm, pair of tongs, Spade.

Answer 2

this is the solution hope u understand