A planet moves around the sun. at a given point p, it is closed from the sun at a distance d₁ and has a speed v₁. at another point q. when it is farthest from the sun at a distance d2, its speed will be: a. d²₁v₁/d₂ b. d₂v₁/d₂ c. d₁v₁/d₂ d. d²₂v₁/d²₁
