A weight is attached to a spring, which moves up and down as a function of time. p(t)p(t)p, left parenthesis, t, right parenthesis gives the position of the weight at time (t)(t)left parenthesis, t, right parenthesis. Position is in centimeters, and time is in seconds. Complete the following sentences based on the graph of the function. The graph is a function. The initial position of the weight is centimeter(s). The weight first reaches equilibrium when t=\:t=t, equals second(s). Note: We say that the weight is at equilibrium whenever p(t)=0\,\text{cm}p(t)=0cmp, left parenthesis, t, right parenthesis, equals, 0, start text, c, m, end text, and we say that the initial position of the block is its position when t=0\,\text{s}t=0st, equals, 0, start text, s, end text. \qquad