28. How much work is done by the boy pulling his sister 30.0 m in a wagon as shown below? Assume no friction acts on the wagon. F (50 N) 30 d (30 m)

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Chapter7: Work, Energy, And Energy Resources
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28. How much work is done by the boy pulling his sister
30.0m in a wagon as shown below? Assume no friction
31. A consta
direction of the
work done by
acts on the wagon.
32. Atoy cart
across the flod
of 20 N and is
F (50 N)
is the work do
(30m)
33. A 5.0-k
coefficient of
is H=0.50
velocity for 10
horizontal for
Transcribed Image Text:28. How much work is done by the boy pulling his sister 30.0m in a wagon as shown below? Assume no friction 31. A consta direction of the work done by acts on the wagon. 32. Atoy cart across the flod of 20 N and is F (50 N) is the work do (30m) 33. A 5.0-k coefficient of is H=0.50 velocity for 10 horizontal for
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