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PART - 1 CH - 5Work, Energy and Power — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsPART - 1 CH - 5Work, Energy and Power1 Mark
Question
What will be the work done by force of gravity in lifting a 10 kg mass to a height of 10 m ?
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Answer

Work done by gravitational force
$\begin{aligned}W & =m(-g) h=-m g h
\\& =-10 \times 10 \times 10=-1000 \text { Joule }\end{aligned}$

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