A block of mass 500 grams is attached to a horizontal spring as shown, is set to oscillate in a simple harmonic motion described by x(t) = 0.50 cos [(1.577 rad/s) t + n/6] m. m X = -A X = 0 X = +A Find the amplitude, the spring constant of the spring, the period, total energy, and the speed of the block when it is 20 cm from the equilibrium position. The amplitude of the oscillator is Drag answer here 1.27 s The total energy is Drag answer here 3.49 m/s The spring constant of the spring is Drag answer here None of these The period of oscillation is 2.26 m/s Drag answer here The speed when it is 20 cm away from the 12.2 N/m equilibrium position is Drag answer here 0.50 m 2.47 J 0.25 m