Question

The volume of 50g of a substance is 20cm cube. If tje density of water is 1g/cm³ cube ,will the substance float or sink.
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Answer 1

AnsWer:-

The substance will sink in the water.

Step by step explanation:

Given:-

• Mass of the substance = 50g
• Volume of the water = 20cm³

Need to find:

• Substance will sink or float?

Explanation:-

As we know that,

Density of substance = mass of substance /volume of substance

Putting values in this formula,

We get;

Density of substance = 50g/20cm³

=> 2.5g/cm³

As we can see that,

The density of the substance is more than that of water (1g/cm³) as a result of which substance will sink in water.

Answer 2

$\large{ \bold{ \star{ \underline{ \underline{ \red{ Question...}}}}}}$

✒The volume of 50g of a substance is 20cm cube. If the density of water is 1g/cm³ cube ,will the substance float or sink....?

$\large{ \bold{ \star{ \underline{ \underline{ \red{Answer...}}}}}}$

⚜ The body will sink in water.

$\large{ \bold{ \star{ \underline{ \underline{ \red{Solution...}}}}}}$

✒ Given...

✔ Mass of the body= 50 g

✔Volume of the body= 20 cm^3

✔Density of water= 1g/cm^3

✒ To find...

✔Whether the body will sink or float in water..

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

$\sf{ \mathrm{ \large{ \green{we \: know \: that...}}}}$

• 1. A body floats in a liquid if its less than the density of liquid.
• 2. The body will sink if its density is more than the density of the liquid.
• 3. The body will remain suspended if its density is equal to the density of the liquid.

$\large{ \mathrm{ \purple{so \: first.. \: we \: have \: to \: find \: out \: the \: density \: of \: the \: body}}}$

$\large{ \mathrm{ \dag{ \boxed{ \: \: density = \frac{mass}{volume} }}}} \\ \\ : \large{ \mathrm{mass \: of \: body = 50 \: g}} \\ : \large{ \mathrm{volume \: of \: body = 20 \: cm {}^{3} }} \\ \\ : \large{ \mathrm{ \implies{density = \frac{50}{20} gcm {}^{ - 3} }}} \\ : \large{ \mathrm{ \implies{density \: of \: the \: body = 2.5g cm {}^{ - 3} }}}$

✏ Here, Density of body > Density of water.... Because [2.5 > 1]♧

$\large{ \mathrm{ \therefore{ \underline{ \underline{ \green{the \: body \: will \: sink \: in \: water}}}}}}$

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