Question

a block of wood has dimensions 4cm,5cm and 25cm anda mass of 1.280kg . find its density in si

Answer 1

Solution:-

given,
mass = 1.280kg = 1280gram
block of wood dimensions = 4cm, 5cm, 15cm

= volume = 4×5×25

= 500cm^3

= density = mass/volume

= dencity= 1280/500

= (2.56gram/cm^3) ans

Answer 2

heya !!

here is ur answer

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density = mass / volume.

↪ mass is given in the question ,that is 1.280.kg.


↪ let's find volume.

↪ the given wood is in the shape of cuboid

↪ volume of cuboid = lbh

⭐ substitute the values :-

l= 4

b = 5

h = 25

Volume = 4*5*25

Volume = 500cm

↪ converting into kg.

↪ 500/1000

↪ 0.5 m

_________________

density = 1.280/0.5


density = 2.56 kg / m^3


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hope it helps u..!!

thnkq