(10 points) A ball is thrown vertically upward from a height of 6 feet with an initial velocity of 80 feet/second. The height (in feet) of the ball at t seconds is given by s(t)=6+80r-16r². Include units in your answers. You may use a calculator for this problem. (a) What is the velocity of the ball at 2 seconds?(b) When will the ball reach its maximum height?(c) What is the maximum height achieved by the ball?(d) What is the acceleration of the ball at any time ??(e) When does the ball hit the ground? Round your answer to two decimal places.(f) At what velocity does the ball strike the ground? Round your answer to two decimal places.