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A boy of mass 50 {~kg} runs up a staircase of 45 steps in 9 {~
Science
Science

Class 9

NCERT

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NCERT
Subject:
Science
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Medium
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A boy of mass runs up a staircase of 45 steps in . If the height of each step is , find his power. Take .

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Updated on: Dec 17, 2023

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A boy of mass runs up a staircase of 45 steps in . If the height of each step is , find his power. Take .
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Weight of the boy, Height of the staircase, Time taken to climb, From Eq. (11.8), power, Work done/time taken Power is .
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Question Text
A boy of mass runs up a staircase of 45 steps in . If the height of each step is , find his power. Take .
Updated OnDec 17, 2023
TopicWork and Energy
SubjectScience
ClassClass 9
Answer TypeText solution:1 Video solution: 11
Upvotes1220
Avg. Video Duration4 min