Question

An engineer designs a machine that lifts a 5kg object to a height h. If the force required is 10 N. what is the minimum distance over which this force must be applied???

Answer 1

The work is the same, so 5*9.81*h=10*d

Answer 2

But i have 2 unknowns d and h

Answer 3

Do you have to give a numerical answer, or an answer in therms of h?

Answer 4

oh sorry yes you are right answer is in therms of h... thanks for your help

Answer 5

You are welcome. : )