sum of moments is zero.
50*.5-M(.7-.5)=0
M= 25/.2=125 grams.
a beam 1.4m long balanced horizontally on a knife edge at its mid point. if a mass of 50g hung at one end of the beam balanced it when the knife edge is placed 0.5m from the same end.calculate the mass of the beam in grams
1 answer
1 answer