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gun consist of spring of unknown K. the spring compressed distance of .12m and gun is fired vertically.?
Gun can launch a .0202kg pellet from 0 to height 20m.
Neglecting all resistive forces, find the spring constant and the speed of the pellet as it moves through the equilibrium point.
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- oubaasLv 73 years ago
E = m*g*h = k/2*x^2
k = 2*m*g*h/x^2 = 2*0.0202*9.806*20/0.12^2 = 550 N/m
V = √2gh = √40*9.806 = 19.8 m/sec
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