Question

the volume of a 100g packet is 40cm^3 , if the density of water is 1g/cm^3 will the packet
float or sink in water , calculate and arrive at an answer.
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it's urgent!

Answer 1

$\huge\sf{Answer:}$

☆ Given:

⇏ The volume of a 100g packet is 40cm³ , if the density of water is 1g/cm³

☆ Find:

⇏ Calculate does the packet float or sink in water.

☆ According to the question:

⇏ $\sf Mass = 100 g$

⇏ $\sf Volume = 40 cm^3$

☆ Using formula:

⇏ $\sf Density = \dfrac{Mass}{Volume}$

⇏ $\sf \dfrac{100}{40}$

⇏ $\sf \dfrac{10}{4}$

⇏ $\sf \dfrac{5}{2}$

⇏ ${\sf{\boxed{\underline{\sf{2.5 g/cm^3}}}}}$

☆ Note:

The packet is higher than the density of water, So the packet will sink.

Suppose the density of the packet is lesser than water the water would float. Example: The given mass and volume are Inter- changed we get the answer 'the packet would float on water'.

⇏ $\sf 2.5 cm^3 \times 1g/cm^3$

⇏ ${\sf{\boxed{\underline{\sf{2.5g}}}}}$

Therefore, the packet would sink.

Answer 2

Answer:

Given values :

• Mass = 100 g
• Volume = 40 cm³
• Density of water = 1 g/cm³

Formula to find the density = Mass/Volume

So, using the same formula to find the density of the packet :

➸ 100/40

➸ 10/4

➸ 5/2

➸ 2.5 g/cm³

Hence, the the density of the packet = 2.5 g/cm³.

Concept : If the density of the material is lesser than the density of the water, then the material will float on the surface of water. And if the density of the material is more than the density of the water, then the material will sink.

Hence, as we observe the density of the material in this condition is more than the density of water.

Hence, the given material will sink.