1.) A cube 1.50 cm on edge mounted on the end of strip that lies in vertical plane. Mass of strip is neglible, but the length of the strip is much larger than cube. The other end of strip is clamped on to a stationary frame. A horizontal force of 1.43 N applied to the cube is required to hold it 2.75 cm away from equilibrium. If the cube is released, what is the frequency of vibration? Absolutely any hints would be appreciated. 2.) A 2kg object is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of 20N is required to hold the object at rest when it is pulled 0.2 m from equil. Object is released from rest with initial position of .2 m . Find: Force Konstant Frequency Max speed. Max acceleration. Total Energy Velocity when position is equal to one third of maximum value is 1.33 m/s. Acceleration of object when its position is equal to one third of the maximum value. The questions also had other parts. For these, i found that: k= 100 N/m f = 10 Hz v = 1.4142 m/s a = 9.99 m/s^2 The velocity when position is equal to one third of maximum value is 1.33 m/s. However, how do i find the acceleration of object when its position is equal to one third of the maximum value? Also, it wouldbe nice for someone to check my answers. Thank you very much.