3 years ago

A soccer ball is kicked into the air. Its height above the ground can be approximated

Mathematics

1 answer:

Monica [59]3 years ago

8 0

Answer:

See below in bold.

Step-by-step explanation:

a) h = -3t^2 + 15t = 0

-3t(t - 5) = 0

t = 0, 5 are the zeroes of the relation.

b) The ball hits the ground when h = 0 so it is after 5 seconds.

c) The path of the ball is a parabola which opens downwards so the maximum height is when x = 5/2 = at 2.5 seconds.

d) this maximum height is -3(2.5)^2 + 15(2.5) = 18.75 meters.

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