A 120-m long ski lift carries skiers from a station at the foot of a slope to a second station 40 m above the base. What is the IMA of the lift?

IMA = 3

Explanation:

Given the following data;

Distance covered by the effort or output distance = 120 m

Distance covered by the load or input distance = 40 m

To find the ideal mechanical advantage (IMA);

Mathematically, IMA is given by the formula;

Substituting into the equation, we have;

IMA = 3

Therefore, the ideal mechanical advantage (IMA) of this ski lift is 3.

NB: The ideal mechanical advantage has no units.

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force