Physics, 07.06.2021 03:50 glstephens04

A 3 kg mass is attached to a spring on a level surface and is oscillating with amplitude of 30 cm. The spring has a constant, k= 3N/m. The spring is in equilibrium at time t=0. What is the kinetic energy at time t = 0 sec? 0.135 J
0.30 J
0.270 J
0.45 J

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A 3 kg mass is attached to a spring on a level surface and is oscillating with amplitude of 30 cm. T...