Alright need you to me with this question

Suppose that x and y are both differentiable functions of t and are related by the given equation. use implicit differentiation with respect to t to determine startfraction dy over dt endfraction in terms of x, y, and startfraction dx over dt endfraction .

Can any one me with the answers to these questions asap?

Is the power produced directly proportional to the wind speed, give reasons for your answer?