In this question use g=9.8g = 9.8g=9.8 m s−2^{-2}−2.
A uniform beam AB AB\,AB of length 6 m and mass 20 kg rests horizontally in equilibrium on two supports, one at A A\,A and one at BBB.
A load of mass 40 kg is placed on the beam at a distance x x\,x m from AAA. The reaction of the support on the beam at B B\,B is three times the reaction of the support on the beam at AAA.
Find the magnitude of the reaction of the support on the beam at AAA.
Find the value of xxx.