4) During the siege of Helm's Deep, a valiant archer pulls back his bowstring 70 cm with a force of 190 N. If the mass o
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4) During the siege of Helm's Deep, a valiant archer pulls back his bowstring 70 cm with a force of 190 N. If the mass o
4) During the siege of Helm's Deep, a valiant archer pulls back his bowstring 70 cm with a force of 190 N. If the mass of his arrow is 55 g, what is the speed of the arrow as it leaves the bow? Assume that a bow behaves like a spring.
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