3.66:
(a)
(ball)
runner)
(
x
x
v
v
=
θ
.
cos
)
m/s
0
.
20
(
m/s
00
6
=
300
.
0
cos
=
θ
°
=
5
.
72
θ
Time the ball is in the air:
2
2
1
0
sin
gt
θt
v
y

=
2
2
)
m/s
80
.
9
(
2
1
)
5
72
m/s)(sin
0
.
20
(
m
0
.
45
t
t
.

°
=

Solve for
t
:
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