Question

a coolie lifts a box of 30kg from the ground to height of 2m Calculate the work done by coolie​

Answer 1

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A coolie lifts a box of 30kg from the ground to height of 2m Calculate the work done by coolie

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$\purple{Work \: done \: by \: coolie = opposite \: gravitational \: work }$

$\pink{:\leadsto}\orange{mgh}$

$\pink{ :\leadsto}\orange{30×10×2}$

$\pink{:\leadsto}\orange{300×2}$

$\pink{:\leadsto}\orange{600g}$

[Hope this helps you.../]

Answer 2

Answer:

work = f * d = 15 * 2 =30joules

given , mass =15kg , distance= 2m , g= 9.8

w=?

now force applied , f w mg = 15 x 9.8 = 147N

work done = w = f x s =147x2 =294N

i hope you understand

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