70 kg mass causes a vertical spring to stretch 0.850 meters. the spring is then stretch and additional 0.

a 4.70 kg mass causes a vertical spring to stretch 0.850 meters. the spring is then stretch and additional 0.270 meters and release (as a stopwatch starts) causing the spring and mass to oscillateWhat is the maximum velocity of this mass? using the equationsT=1/f and Vmax=2πA/T