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 <> ◊
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 4 images