A tiny mass swinging at a thread works as a pendulum (to predict the future). Some friction reduces the pendulum's amplitude by 10% each swing. In order to maintain a constant amplitude one needs to move the hand forth and back with the right frequency. angle of 5. Calculate the frequency and the amplitude for a pendulum length of 20 cm to achieve a swinging Angular velocity Vr in m/s Coriolis acceleration Side motion in m points 15 14 13 14 Ball velocity increased Deflection angle Puck momentum Ewok velocity by centrifugal force 139 15 6 15