2. A 0.0200 kg mass is attached to a spring and vibrates with simple harmonic motion with an amplitude of 5.00 cm. The spring constant is 300. N/m. What is the speed of the mass when it is 2.00 cm from its equilibrium position? 3 . On planet Antares 7, a simple pendulum of length 1.25m oscillates with a frequency of 0.330Hz. What is the gravitational acceleration on the surface of Antares 7? gravitational acceleration 4. When a 0.600kg mass is attached to a spring, it stretches 0.200 m to establish equilibrium. The spring is then stretched a further 0.150 m from this equilibrium point and released. Find: The spring constant (use Hooke's Law) Period of motion Fe = KX h = The amplitude The velocity when the mass is 0.100 m from vo = axo equilibrium V = WJ x 2 - x 2 Maximum velocity. Vo = WHO