Question

plz help me
I will Mark it's brain list

Answer 1

Answer:

angle produce by man goes with ladder will be 90°

work =force*displacement*cos theta

W=F*S*cos90; cos 90=0

W= 0

According to convection the work sone by man by spiral staircase would be more than man ladder.

Answer 2

$\huge \sf{\green {\underline{\underline{Brainliest \: Solution}}}}$

Both the men, X and Y, do equal amount of work against Gravity because irrespective of whether they reach the top of building by using a spiral staircase or a slanting ladder, the vertical distance moved by them against Gravity is the same.