Q 3 This is a calculus problem A stubborn mule of mass m

Last updated: 6/9/2023

Q 3 This is a calculus problem A stubborn mule of mass m sits down and refuses to move To drag the mule to the barn the exasperated farmer ties a rope around the mule and tries to pull the mule The coefficients of friction between the mule and the ground are 0 7 and 0 5 a Derive an expression for the angle at which the farmer should pull the mule in order that the applied force will be minimum b If the mass of the mule is 78 0 kg calculate the minimum force needed to make the mule just start sliding c Once the mule starts moving what minimum force is needed to keep this mule moving with constant speed