The path that the firework takes is given by the equation h = -2t^2+8t+3, where h is the height of the firework in meters and t is the time in seconds. a)    Determine the maximum HEIGHT of the firework (complete the square).  b)    After how many SECONDS does it reach this MAXIMUM HEIGHT to the nearest TENTH of a unit. c)    Determine the INITIAL HEIGHT that the firework is launched from. d)    If the firework doesn’t explode in mid-air, determine how long it will take the firework to land on the ground.

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –