Question

A 5kg block has a length of 50cm, width of 25cm, height of 8cn
The density is ...
A. 0.5 g / cm3
B. 5 g / cm3
C. 50 g / cm3
D. 500 g / cm3
e. 5000 g / cm3

Answer 1

Known :

m = 5 kg = 5000 gr

p = 50 cm

l = 25 cm

t = 8 cm

Asked: Density?

Answered:

V = p x l x t

= 50 x 25 x 8

= 10,000 cm³

So the density of objects:

ρ = m / V

= 5000 / 10,000

= 0.5 gr / cm³

Answer A

Answer 2

SOLUTION

Volume of cuboid= lbh

=) 50cm × 25cm × 8cm

=) 10000cm^3

Now, Density

=) density= M/V

=) 5kg/10000

=) 5000/10000 [1kg= 1000g]

=) 5/10

=) 0.5g/cm^3

Option (a)✓

hope it helps ☺️