Livia’s bill for lunch came to $8 before tax and tip. The restaurant included a 7 percent sales tax, and she left a 15 percent t
2 answers:
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Answer:
a) , b)
, c)
, d)
, e)
, f)
Step-by-step explanation:
The velocity function can be derived by the differentiating the height function:
Velocities after 2 and 4 seconds are, respectively:
a)
b)
The maximum height is reached when velocity is zero. Then:
c)
The maximum height is:
d)
The time required to hit the ground is:
Roots of the second-order polynomial are:
Only the first root is physically reasonable.
e)
The velocity when the projectile hits the ground is:
f)