The vertical position of a ball suspended by a rubber band is given by the equation
y(t) = (3.8 m)sin(0.46 t/s − 0.31) − (0.2 m/s)t + 5.0 m
a) What are the equations for velocity and acceleration for this ball?
b) For what times between 0 and 30 s is the acceleration zero?
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