Question

A rock has a volume of 15 cm3 and a mass of 45 g. What is its density?

Answer 1

Answer

Hii dear

We know that

Density = mass ÷ volume

Mass = 45g (given)

Volume = 15 cm*3 (given)

Density = 45 ÷ 15

Density = 3 g per cm*3

Answer 2

$\blue{\bold{\underline{\underline{Answer:}}}}$

$\green{\tt{\therefore{Density=3\:g/cm^{3}}}}$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

$\green{\underline \bold{Given : }} \\ \tt: \implies Mass \: of \: rock = 45 \: g \\ \\ \tt: \implies Volume \: of \: rock = 15 \: {cm}^{3} \\ \\ \red{\underline \bold{To \: Find: }} \\ \tt: \implies Density \: of \: rock =?$

• According to given question :

$\bold{As \: we \: know \: that} \\ \tt: \implies Density = \frac{Mass}{Volume} \\ \\ \tt: \implies Density = \frac{45}{15} \\ \\ \green{\tt: \implies Density = 3 \: g /{cm}^{3} }\\\\ \blue {\boxed{ \bold{some \: related \: formula}}} \\ \orange{ \tt \circ \: kinetic \: energy = \frac{1}{2} {mv}^{2} } \\ \\ \orange{ \tt \circ \:potential \: energy = mgh } \\ \\ \orange{ \tt \circ \: linear \: momentum= mv } \\ \\ \orange{ \tt \circ \: pressure= \frac{force}{area} }$