posted by falcon306 .
A 3.0-m-long rigid beam with a mass 130 kg is supported at each end. An 90 kg student stands 2.0 m from support 1. (beam 1 is to the left, and beam 2 is on the right.)
How much upward force does support 1 exert on the beam?
How much upward force does support 2 exert on the beam?