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A person of mas 50 kg carryign a load of...

A person of mas 50 kg carryign a load of 20 kg walks up a staircase. If the width and heigh of each step are 0.25 mand 0.2 m respectively, the work done by the man in walking up 20 steps is `(g=10ms^(-2))`

A

`1400 J`

B

800 J

C

2000 J

D

2800 J

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • A person of mass 50 kg carrying a load of 20 kg walks up a staircase. If width and height of each step are 0.25m and 0.2 m respectively, the work done by the man in walking up 20 steps is, (g=10 ms^(-2))

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    B
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    2800 J

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