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Katarina [22]
3 years ago
6

How much rope would need to be pulled through a pulley with a mechanical advantage of 2 to lift a load 4 ft?

Physics
2 answers:
blondinia [14]3 years ago
8 0
8 feet of rope is needed.
emmasim [6.3K]3 years ago
8 0
8 feet is what you need
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Answer:

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change in momentum is the subtraction from "after momentum" of the "before momentum"  as momentum is a vector quantity this is a vector subtraction.

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after momentum

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since these momentums are 180° opposite one must be called negative so their difference

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change in momentum = 15.67 kg-m/s ANS a1

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Impulse =Favg*t

I=(2.00)Favg

Impulse from (a2) = 15.67  

Favg = 15.67/2.00 =

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