Work done will be zero as the angle between force (in verticle direction against gravity) and displacement (if kitchen is in same horizontal plane) is 90.
–
Aman Dubey
·
7 months, 1 week ago

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Where is the kitchen located relative to where the rice was?
–
Calvin Lin
Staff
·
7 months, 1 week ago

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@Calvin Lin
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John weighing 40 kg claimbs up a staircase of 20 steps,each of 16 cm height, in 20 seconds. Find the power generated by him.
–
Ashley Shamidha
·
7 months ago

## Comments

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TopNewestW=F.S Cos(theta)

We have to know the 'THETA' Which is point of application of force

In this case, Only Force and displacement , there is no use of length of sack

Simply if we take W=F.S and Cos180°= (-1) So,W=450x 10x (-1) =(-4500) – Adarsh Mahor · 7 months, 1 week ago

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– Narayan Palsikar · 7 months ago

Hiii mi Narayan...how is itLog in to reply

Zero – Mohit Gupta · 7 months, 1 week ago

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450*1.2 – Khairul Azman · 7 months, 1 week ago

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Work done will be zero as the angle between force (in verticle direction against gravity) and displacement (if kitchen is in same horizontal plane) is 90. – Aman Dubey · 7 months, 1 week ago

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Where is the kitchen located relative to where the rice was? – Calvin Lin Staff · 7 months, 1 week ago

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– Ashley Shamidha · 7 months ago

John weighing 40 kg claimbs up a staircase of 20 steps,each of 16 cm height, in 20 seconds. Find the power generated by him.Log in to reply