A ball is tossed into the air at a rate of 20 meters per second. A model describing the height of the ball after t seconds would be: h(t) 1.86t² + 20t a) Calculate the velocity of the ball after 3 seconds: Select an answer Select an answer meters seconds seconds per meter meters per second b) Calculate the velocity of the c) When will the rock hit the ground? (Round your answer to two decimal places as needed.) Select an answer 4

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