The Regular Work

Classical Mechanics Level 2

Rigby and Mordecai were given a job by Benson the Manager. They were supposed to carry a heavy electric motor placed on a light board of length 2.00 m. Rigby, being the smaller one, lifts at one end with a force of only 400. N., while Mordecai lifts at the other end with a force 600. N. Both of them exert these forces straight up. The board and heavy electric motor must both be balanced, or else Benson would deduct from their salary.

Where along the board should the motor be placed?

Details and Assumptions

  • Treat the motor as a point mass.

  • Neglect the mass of the board.


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