Question

by using a simple machine,the work done by a person remains the same but it allows the person to use less force.explain​

Answer 1

How do machines decrease the amount of force needed to accomplish work? Machines apply force over a greater distance, so less force is needed. < 1 - reduces output force and increases the distance the object moves. ... Because some of the input work is always used to overcome friction in moving parts.

Answer 2

work done = F × s

suppose F = 10 and s = 5

Using machine,

work done = f × S

suppose f = 5 and S = 10

In both the cases work doen is same but the value of f os different.

HOPE THIS WILL HELP U