A A beam 9 m long, 50 cm wide, and 20 ém deep is made of wood which w

1.	A A beam 9 m long, 50 cm wide, and 20 ém deep is made of wood which weighs 30 kg per m', find theweight of the beam.22+
Answer» Given,Beam length l = 9m, width w = 50 cm or .5m, depth d = 20 cm or .2m Density of beam Dn = 30 kg/m^3 Volume of beam = lwd= 9.5.2= 90/100= .9 m^3 Weight of Beam = Volume of beamdensity of beam= .930= 27 kg

A A beam 9 m long, 50 cm wide, and 20 ém deep is made of wood which weighs 30 kg per m', find theweight of the beam.22+

Answer»

Given,Beam length l = 9m, width w = 50 cm or .5m, depth d = 20 cm or .2m

Density of beam Dn = 30 kg/m^3

Volume of beam = l*w*d= 9*.5*.2= 90/100= .9 m^3

Weight of Beam = Volume of beam*density of beam= .9*30= 27 kg