A certain spring is at rest when stretched 0.392 m by a 2.0 kg mass. Which funct

Question

A certain spring is at rest when stretched 0.392 m by a 2.0 kg mass. Which function describes the motion of the mass if it is pulled down 0.25 m and released without imparting any initial velocity at time t = 0? Other helpful information: the motion is not damped; use 9.8 m s -2 as the acceleration due to gravity; and consider the zero position to be the rest position of the spring with the mass attached, and downward motion defines the positive x direction. y(t) = cos 5t y(t) = 0.25(cos 5t + sin 5t) y(t) = 1.00 cos 5t y(t) = 0.25 cos 5t

Explanation / Answer

it is option D

Y(t)=0.25cos5t

because amplitude is 0.25 and motion is oscillatory

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