two children carry a lightweight 3.0-m-long horizontal pipe with a huge carp the
ID: 2092637 • Letter: T
Question
two children carry a lightweight 3.0-m-long horizontal pipe with a huge carp they hanging from it uphill along a steep slope. the older child, walking in front , supports twice as much weight as the younger child, who brings up the rear. ingoring the weight of the children, which of the following statements is true?
A) Both do the same amount of work on the bucket since they are walking up the same slope.
B) the younger child does more work than the older child.
C) Neither does amy work because gravity does the work.
D) If they switched places the pole , the older child would do less work than before.
E) CAnt tell because we dont know the weight of the bucket.
Explanation / Answer
work done=Force*displacement
D) If they switched places the pole , the older child would do less work than before.
because the older supports twice the weight so initially work done is more as they change place the weight supported will be less by older thus less work done
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