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If there is a load of say, mass =m Kg which is being raised on the end of a light inextensible rope by means of a winch.
see attachment.
the pulley of the winch has a radium x meters and is lets say that it is frictionless.
the acceleration of the load is a ms^2
can someone tell me how would i calculate the Torque / moment on the pulley ?
i know that torque = Force * Displacement
here is what i think shud be the correct equation :
net force =N = T  mg
N[x]= Torque
But the equation in my notes says otherwise :
let K = the torque applied by the winch (the torque driving the pulley)
Torque on the pulley = K  (x)(T)
which one is correct and why ?
see attachment.
the pulley of the winch has a radium x meters and is lets say that it is frictionless.
the acceleration of the load is a ms^2
can someone tell me how would i calculate the Torque / moment on the pulley ?
i know that torque = Force * Displacement
here is what i think shud be the correct equation :
net force =N = T  mg
N[x]= Torque
But the equation in my notes says otherwise :
let K = the torque applied by the winch (the torque driving the pulley)
Torque on the pulley = K  (x)(T)
which one is correct and why ?
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