A 120-lb cabinet is mounted on casters that can be locked to prevent their rotat

Question

A 120-lb cabinet is mounted on casters that can be locked to prevent their rotation. The coefficient of static friction between the floor and each center is 0.30. If determine the magnitude of the force P required to move the cabinet in the right if all casters are locked, if the casters at B are locked and the casters of A are free to rotate, if the casters at A are locked and the casters at B are free to rotate. A 120-lb cabinet is mounted on casters that can be locked to prevent their rotation. The coefficient of static friction between the floor and each caster is 0.30. Assuming that the casters at both A and B are locked, determine the force P required to move the cabinet to the right, the largest allowable value of h if the cabinet is not to tip over. Wire is being drawn at a constant rate from a spool by applying a vertical force P to the wire as shown. The spool and the wire wrapped on the spool have a combined weight of 20 lb knowing that the coefficients of friction at both A and B are mu2=0.40 and mu3=0.30, determine the required magnitude of the force P. assuming that the coefficients of friction at all are zero. The hydraulic cylinder shown events a force of 3 k N directed to the right on point B and to the left on point E. Determine the magnitude of the couple M required to rotate the drum clockwise at a constant speed.

Explanation / Answer

A 120-lb cabinet is mounted on casters that can be locked to prevent their rotat

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