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**Physics, Astronomy & Cosmology / Re: Can a mass be lifted with force less than its weight ?**

« **on:**27/06/2024 10:08:14 »

I think you didn't get me. The pulley is free to rotate, the smaller mass is exerting force equals to its gravity on the bigger mass, so you need to exert force equals:

Mg-mg

M: mass of the bigger object

m: mass of the smaller object

Actually if the masses are equal, in theory you can exert the smallest force but to accelerate it in a short time to lift it you need to exert the force for the time you want. See the drawing.

Mg-mg

M: mass of the bigger object

m: mass of the smaller object

Actually if the masses are equal, in theory you can exert the smallest force but to accelerate it in a short time to lift it you need to exert the force for the time you want. See the drawing.