Consider a 15-foot hanging chain that weighs 3 pounds per foot. Find the work done in lifting the chain vertically to the indicated position. Take the bottom of the chain and raise it to the 15-foot level, leaving the chain doubled and still hanging vertically (see figure). ft-lb 15+ 12+ 9+ 15- 2y 3- Need Help? Read It Watch It
Consider a 15-foot hanging chain that weighs 3 pounds per foot. Find the work done in lifting the chain vertically to the indicated position. Take the bottom of the chain and raise it to the 15-foot level, leaving the chain doubled and still hanging vertically (see figure). ft-lb 15+ 12+ 9+ 15- 2y 3- Need Help? Read It Watch It
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Calc 2
Transcribed Image Text:Consider a 15-foot hanging chain that weighs 3 pounds per foot. Find the work done in lifting the chain vertically to the indicated position.
Take the bottom of the chain and raise it to the 15-foot level, leaving the chain doubled and still hanging vertically (see figure).
ft-lb
15
y
12 -
15 - 2y
6+
3-
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