b)
W hat
i s
t he
h eight
o f
t he
b aseball
o nce
i t
h as
t ravelled
a
h orizontal
d istance
o f
6
m eters?
c)
A t
w hat
o ther
h orizontal
d istance
i s
t he
b aseball
a t
t he
s ame
h eight
a s
i n
p art
b )
?
!
6.
T he
f light
p ath
o f
a
f irework
i s
m odeled
b y
t he
r elation
ℎ = −5 − 5
+ 127,
w here
ℎ
i s
t he
h eight,
i n
meters,
o f
t he
f irework
a bove
t he
g round
a nd
i s
t he
t ime,
i n
s econds,
s ince
t he
f irework
w as
f ired.
a)
W hat
i s
t he
m aximum
h eight
r eached
b y
t he
f irework?
H ow
m any
s econds
a fter
i t
w as
f ired
d oes
t he
firework
r each
t his
h eight?
b)
H ow
h igh
w as
t he
f irework
a bove
t he
g round
w hen
i t
w as
f ired?