PLEASE HELP THESE ARE BOTH 2 PART QUESTIONS!

015 (part 1 of 2) 10.0 points
A cheetah can run at a maximum speed
99.8 km/h and a gazelle can run at a maximum speed of 71.7 km/h.
If both animals are running at full speed,
with the gazelle 81.1 m ahead, how long before
the cheetah catches its prey?
Answer in units of s.
016 (part 2 of 2) 10.0 points
The cheetah can maintain its maximum speed
for only 7.5 s.
What is the minimum distance the gazelle
must be ahead of the cheetah to have a chance
of escape? (After 7.5 s the speed of cheetah is
less than that of the gazelle.)
Answer in units of m.



006 (part 1 of 2) 10.0 points
One strategy in a snowball fight is to throw
a snowball at a high angle over level ground.
While your opponent is watching this first
snowball, you throw a second snowball at a
low angle and time it to arrive at the same
time as the first.
Assume both snowballs are thrown with
the same initial speed 35.6 m/s. The first
snowball is thrown at an angle of 55◦
above
the horizontal. At what angle should you
throw the second snowball to make it hit the
same point as the first? Note the starting and
ending heights are the same. The acceleration
of gravity is 9.8 m/s 2
.007 (part 2 of 2) 10.0 points
How many seconds after the first snowball
should you throw the second so that they
arrive on target at the same time?
Answer in units of s.