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A mass m = 5 kg is connected to an ideal massless spring of spring constant...

A mass m = 5 kg is connected to an ideal massless spring of spring constant k = 100 N/m. At initial time t = 0 s, the mass passes the equilibrium position moving to the left (defined as the negative x direction) with a velocity vx0 = -5 m/s.

Part (a): What is the first time after the initial time that the mass will be at the rightmost displacement?

What is the quickest approach to this problem?

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