The amount of work done by the labourer who carries n bricks, each of mass m, to the roof of a house whose height is h is
A. n mgh B. mgh/n C. zero D. ghn/m

Question

The amount of work done by the labourer who carries n bricks, each of mass m, to the roof of a house whose height is h is A. n mgh B. mgh/n C. zero D. ghn/m

Saurabh Koranglekar · Answer

Dear student The answer is option a Regards

Vikas TU · Answer

We know work done=-P. E. So, P. E. = mgh, for 1 brick Now, For n brick P. E. =n×mgh So, work done= nmgh ans. where, g=acceleration due to gravity.

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The amount of work done by the labourer who carries n bricks, each of mass m, to the roof of a house whose height is h is A. n mgh B. mgh/n C. zero D. ghn/m

The amount of work done by the labourer who carries n bricks, each of mass m, to the roof of a house whose height is h is
A. n mgh B. mgh/n C. zero D. ghn/m

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The amount of work done by the labourer who carries n bricks, each of mass m, to the roof of a house whose height is h is A. n mgh B. mgh/n C. zero D. ghn/m

The amount of work done by the labourer who carries n bricks, each of mass m, to the roof of a house whose height is h is A. n mgh B. mgh/n C. zero D. ghn/m

2 Answers

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The amount of work done by the labourer who carries n bricks, each of mass m, to the roof of a house whose height is h is
A. n mgh B. mgh/n C. zero D. ghn/m