Answer :
The function is a sine function and, the height of the ball at equilibrium is a feet
How to determine the height at equilibrium?
The function of the height is given as:
h = a sin(b (t - h)) k
The above function is a sine function, and the amplitude of the function is the variable a
The amplitude is the height of the ball at equilibrium
Hence, the height of the ball at equilibrium is a feet
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