Question

An object which is thrown or projected into the air, subject to only the acceleration of gravity is called a
projectile, and its path is called its trajectory. This curved path was shown by Galileo to be a parabola.
Parabola is represented by a polynomial. If the polynomial to represent the distance covered is
p(t) = -57 + 4t + 1.2


i) Find the height of projectile 4 seconds after it is launched.
a) 80.2 m
b) 81.2 m
c) 81.8 m
d) 84 m
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Answer 1

Answer:

An object which is thrown or projected into the air, subject to only the acceleration of gravity is called a

projectile, and its path is called its trajectory. This curved path was shown by Galileo to be a parabola.

Parabola is represented by a polynomial. If the polynomial to represent the distance covered is

p(t) = -57 + 4t + 1.2

i) Find the height of projectile 4 seconds after it is launched.

a) 80.2 m

b) 81.2 m

c) 81.8 m

d) 84 m

Answer 2

Answer:

84m is the answer right down