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A potato is launched vertically with an initial velocity of 75 ft/s from the top of a 200-foot-tall building. After t seconds, its height above the ground is given by s (t) - -16t- + 75t + 200. Round your answers to 2 decimal places. a. Find the velocity of the potato after 0.5 s and 2.75 s. After 0.5 seconds the velocity is ft/s. After 2.75 seconds the velocity is ft/s. b. Find the speed of the potato after 0.5 s and 2.75 s. After 0.5 seconds the speed is ft/s. After 2.75 seconds the speed is ft/s. c. Find the acceleration of the potato after 0.5 s and 2.75 s. After 0.5 seconds the acceleration is ft/s?! After 2.75 seconds the acceleration is ft/ s2. d. Determine how long the potato is in the air. The potato is in the air for seconds e. Determine the velocity of the potato upon hitting the ground. The velocity as it hits the ground is ft/s