Problem 3.25 A bullet of 5 g is fired vertically at vo 300 m/s. If there is no air resistance it reaches a maximum height (where v(t) 0) at a time given by 0 = vo- gt top. Assume air resistance acts on the bullet so that its time to reach the top of its trajectory will be reduced. Determine this time, assuming the force of air resistance is Dv², where D = CAp. You may assume the density of air is 1.2 kg/m³, that the bullet has a radius of 0.5 cm, and Cv = 0.2. - =
Problem 3.25 A bullet of 5 g is fired vertically at vo 300 m/s. If there is no air resistance it reaches a maximum height (where v(t) 0) at a time given by 0 = vo- gt top. Assume air resistance acts on the bullet so that its time to reach the top of its trajectory will be reduced. Determine this time, assuming the force of air resistance is Dv², where D = CAp. You may assume the density of air is 1.2 kg/m³, that the bullet has a radius of 0.5 cm, and Cv = 0.2. - =
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Transcribed Image Text:Problem 3.25 A bullet of 5 g is fired vertically at vo = 300 m/s. If there is no air resistance it reaches a
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maximum height (where v(t) = 0) at a time given by 0 vogt top. Assume air resistance acts on the
bullet so that its time to reach the top of its trajectory will be reduced. Determine this time, assuming the
force of air resistance is Dv², where D CAp. You may assume the density of air is 1.2 kg/m³, that
the bullet has a radius of 0.5 cm, and Cv = 0.2.
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