- #1
jack1234
- 133
- 0
I have a question for the question
http://tinyurl.com/2mftmr
The following is the solution for the question, and you can see the free body diagram for child only, chair only and chair and child as one system
http://tinyurl.com/32ozt9
For the free body diagram of chair and child as one system, the downward force including the weight of chair and the weight of child.
My question is: the problem has specified that "Pat pulls on the loose end of the rope", but why there doesn't exist a downward arrow from the child's hand because he is pulling down the rope?
http://tinyurl.com/2mftmr
The following is the solution for the question, and you can see the free body diagram for child only, chair only and chair and child as one system
http://tinyurl.com/32ozt9
For the free body diagram of chair and child as one system, the downward force including the weight of chair and the weight of child.
My question is: the problem has specified that "Pat pulls on the loose end of the rope", but why there doesn't exist a downward arrow from the child's hand because he is pulling down the rope?
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