Question

A students caries a bag weighing 5 kg from the ground floor to his class on the first floor that is 2 m high. The work done by the boy is​

Answer 1

Answer:

$total \: it \: have \: work \: done \: at \\ 10kg$

Answer 2

$\huge \fbox{Answer}$

$\large \underline{\underline{\underline{\frak{ \color{red}Given:::}}}}$

$\mapsto \sf{Mass(m) \: of \: bag=5kg}$

${ \mapsto \sf{Height(h) \: of \: ground \: floor \: to \: class=2m}}$

$\large \underline{\underline{\underline{\frak{ \color{grey}To \: find:::}}}}$

$\sf \leadsto{Work \: done(W) \: by \: boy.}$

$\large \underline{\underline{\underline{\frak{ \color{gold}Formula \: requird:::}}}}$

$\star{ \fbox{Work done(W) by boy=mass(m) ×gravity(g) ×height(h)}} \star$

$\large \underline{\underline{\underline{\frak{ \color{s}Concept \: required:::}}}}$

$\rightarrow \sf{Gravity(g) \: of \: body \: is \: 10m {s}^{ - 1} .}$

$\large \underline{\underline{\underline{\frak{ \color{blue}According \: to \: Question:::}}}}$

$\sf{ \implies{Work \: done(W) \: by \: boy=mass(m) ×gravity(g) ×height(h)}}$

$\sf{ \implies{Work \: done(W) \: by \: boy=5kg \times 10m {s}^{ - 1} \times 2m}}$

$\sf{ \implies{Work \: done(W) \: by \: boy=100J}}$

$\large \underline{{\underline{\frak{ \color{indigo}Hence, }}}}$

$\star{ \fbox{Work done(W) by boy=100J.}} \star$

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