A force of 127 N is applied to a lever at a distance of 0.76 m from the right side of fulcrum. The force is applied at an angle of -93 degrees (below the horizontal) from the right horizontal and is pointing toward the fulcrum. The lever itself is 1.75 m long with a symmetrical density and has a mass of 5 kg. The fulcrum is positioned at the left edge of the lever. An additional weight of 225 N is applied on the right side of the lever at 47% of the lever arm length from the fulcrum on top of the lever, over a period of 20 minutes.
- Where is the combined center of mass location along the horizontal axis of the lever and the additional weight (External forces)?
- What type of lever system is described in this scenario (All torques that occur as a result of gravity should be considered external; the applied force should be considered internal)?
- What is the calculated mechanical efficiency of the system (All torques that occur as a result of gravity should be considered external; the applied force should be considered internal)?
- What is the rotational and translational force component of the applied force?
- What is the net torque in this situation? Does the lever move up or does it move down?
Please excuse me while I assume the prone position.