Consider a graphical representation of simple harmonic motion, as described mathematically in the equation below.
x(t)=Acos(ωt+φ)
When the object is at (A) on the graph, which of the following best describes its position and velocity? Its position and velocity are both negative. Its position is negative and its velocity is positive. Its position is negative and its velocity is zero. Its position is positive and its velocity is negative. Its position is positive and its velocity is zero. Its position and velocity are both positive.