A beam 9m long,40 cm wide and 20 cm high is made up of a iron whose density is 50 g per cubic centimetre .find the mass of the beam. plz answer fast
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l=9m
=900cm
b=40cm ;h=20cm
Volume of the beam=l×b×h
=(900×40×20)cm^3
Mass of the beam = 900×40×20/50gm
= 144000gm
= 144kg
=900cm
b=40cm ;h=20cm
Volume of the beam=l×b×h
=(900×40×20)cm^3
Mass of the beam = 900×40×20/50gm
= 144000gm
= 144kg
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