A toy missile is shot into the air. Its height, h, in meters, after t seconds...

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A toy missile is shot into the air. Its height, h, in meters, after t seconds can be modelled by the function h(t) = -4.9t² + 15t+ 0.4, t≥ 0. a) Determine the height of the toy missile at 2 seconds. b) Determine the rate of change of the height of the toy missile at 1 s and 4 s. c) How long does it take the toy missile to return to the ground? d) How fast was the toy missile travelling when it hit the ground? A toy missile is shot into the air. Its height, h, in meters, after t seconds can be modelled by the function h(t) = -4.9t² + 15t+ 0.4, t≥ 0. a) Determine the height of the toy missile at 2 seconds. b) Determine the rate of change of the height of the toy missile at 1 s and 4 s. c) How long does it take the toy missile to return to the ground? d) How fast was the toy missile travelling when it hit the ground?

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