A Spring Gun. A hydraulic press is used to compress a spring that will then be used to project a 29.0-kg steel ball. The system is similar, but smaller in scale, to the car jack illustrated in Figure 11.14. In this case, the smaller cylinder has a diameter of d₁ = 0.85 cm and has a manually operated plunger. The larger cylinder has a diameter of d2 = 9.0 cm, and its piston compresses the spring. The idea is that the gun operator pulls a lever that pushes the plunger on the small cylinder, which transmits a pressure to the larger piston that, in turn, exerts a force on the spring and compresses it. Once the spring is compressed, the steel ball is loaded and the spring is released, ejecting the ball. (a) If a force of 1000 N is exerted on the primary (smaller) piston to compress the spring 1.30 m from its equilibrium (uncompressed) position, what is the spring constant k of the spring? (b) What is the velocity of the steel ball just after it is ejected? (c) Neglecting air resistance, what is the maximum range of this "spring gun"? (a) Number i (b) Number (c) Number i Units Units Units û <> ◊

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter15: Fluid Mechanics
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A Spring Gun. A hydraulic press is used to compress a spring that will then be used to project a 29.0-kg steel
ball. The system is similar, but smaller in scale, to the car jack illustrated in Figure 11.14. In this case, the
smaller cylinder has a diameter of d₁ = 0.85 cm and has a manually operated plunger. The larger cylinder has a
diameter of d₂ = 9.0 cm, and its piston compresses the spring. The idea is that the gun operator pulls a lever
that pushes the plunger on the small cylinder, which transmits a pressure to the larger piston that, in turn,
exerts a force on the spring and compresses it. Once the spring is compressed, the steel ball is loaded and the
spring is released, ejecting the ball.
(a) If a force of 1000 N is exerted on the primary (smaller) piston to compress the spring 1.30 m from its
equilibrium (uncompressed) position, what is the spring constant k of the spring?
(b) What is the velocity of the steel ball just after it is ejected?
(c) Neglecting air resistance, what is the maximum range of this "spring gun"?
(a) Number
(b) Number
(c) Number
Units
Units
Units
î
Transcribed Image Text:A Spring Gun. A hydraulic press is used to compress a spring that will then be used to project a 29.0-kg steel ball. The system is similar, but smaller in scale, to the car jack illustrated in Figure 11.14. In this case, the smaller cylinder has a diameter of d₁ = 0.85 cm and has a manually operated plunger. The larger cylinder has a diameter of d₂ = 9.0 cm, and its piston compresses the spring. The idea is that the gun operator pulls a lever that pushes the plunger on the small cylinder, which transmits a pressure to the larger piston that, in turn, exerts a force on the spring and compresses it. Once the spring is compressed, the steel ball is loaded and the spring is released, ejecting the ball. (a) If a force of 1000 N is exerted on the primary (smaller) piston to compress the spring 1.30 m from its equilibrium (uncompressed) position, what is the spring constant k of the spring? (b) What is the velocity of the steel ball just after it is ejected? (c) Neglecting air resistance, what is the maximum range of this "spring gun"? (a) Number (b) Number (c) Number Units Units Units î
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