Suppose a spring with spring constant 5 N/m is horizontal and has one end attached to a wall and the other end attached to a 4 kg mass. Suppose that the friction of the mass with the floor (i.e., the damping constant) is 2 N · s/m. a. Set up a differential equation that describes this system. Let x to denote the displacement, in meters, of the mass from its equilibrium position, and give your answer in terms of x, x', x''. Assume that positive displacement means the mass is farther from the wall than when the system is at equilibrium. b. Find the general solution to your differential equation from the previous part. Use c1 and c2 to denote arbitrary constants. Use t for independent variable to represent the time elapsed in seconds. Enter c1 as c1 and c2 as c2. Your answer should be an equation of the form x = ... c. Is this system under damped, over damped, or critically damped? Enter a value for the damping constant that would make the system critically damped. N · s/m
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The differential equation that describes this system is: m€'' + c€' + k€ = 0 where m is the mass (4 kg), c is the damping constant (2 N.s/m), k is the spring constant (5 N/m), and € is the displacement from equilibrium position. Substituting the values, we Show more…
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Suppose a spring with spring constant 16 N/m is horizontal and has one end attached to a wall and the other end attached to a 4 kg mass. Suppose that the friction of the mass with the floor (i.e., the damping constant) is 16 N · s/m. a. Set up a differential equation that describes this system. Let x to denote the displacement, in meters, of the mass from its equilibrium position, and give your answer in terms of x, x', x''. Assume that positive displacement means the mass is farther from the wall than when the system is at equilibrium. b. Find the general solution to your differential equation from the previous part. Use c₁ and c₂ to denote arbitrary constants. Use t for independent variable to represent the time elapsed in seconds. Enter c₁ as c1 and c₂ as c2. c. Is this system under damped, over damped, or critically damped? Enter a value for the damping constant that would make the system critically damped.
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