When a particle of mass m is attached to a vertical spring of spring constant k and released, its motion, is described by y t = y 0 sin 2 ωt , where ' y ' is measured from the lower end of u

Question

When a particle of mass m is attached to a vertical spring of spring constant k and released, its motion, is described by y t = y 0 sin 2 ωt , where ' y ' is measured from the lower end of upstretched spring. Then ω is :

TestHub · Accepted Answer

y = y 0 sin 2 ωt y = y 0 2 ( 1 - cot 2 ωt ) y - y 0 2 = - y 0 2 cos 2 ωt Y = A cos 2 ωt 2 ω = k m maximum displacemnet = y 0 = mg k y 0 × ( 2 ω ) 2 = 2 g ω = g 2 y 0

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