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10 Nov 2019
damping
An 4 pound weight stretches an undamped spring by 2 feet. Working in English units, find the value of the spring constant k in lb/ft and the mass m of the weight in slugs. Find the equation of motion if the mass is released from the equilibrium position at an upwards velocity of 2 ft/sec. Assume here that the positive x-direct ion is oriented downwards. Find the first time at which the weight returns to the equilibrium position. Hint: There is a quick and simple way to do this.
damping
An 4 pound weight stretches an undamped spring by 2 feet. Working in English units, find the value of the spring constant k in lb/ft and the mass m of the weight in slugs. Find the equation of motion if the mass is released from the equilibrium position at an upwards velocity of 2 ft/sec. Assume here that the positive x-direct ion is oriented downwards. Find the first time at which the weight returns to the equilibrium position. Hint: There is a quick and simple way to do this.
Lelia LubowitzLv2
12 Apr 2019