What is the maximum height a 100-w engine can lift a 100-kg man in 3.00 minutes?

18.4 m

Explanation:

The force that the engine must apply at least to lift the man must be equal to the weight of the man:

The work done by the engine is the product of the force applied, F, and the height at which the man is lifted, h:

(1)

while the power of the engine is defined as:

where

P = 100 W

t = 3.00 min = 180 s

From this equation, we find the work:

And solving (1) for h, we find the maximum height:

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