While riding in a hot air balloon,
which is steadily at a speed of 1.01 m/s, and your phone accidentally falls.
(a)
The
speed of your phone after 4 s is:
V= u +
at
V= 1.01
+ (9.8)(4)
V=
40.21 m/s
(b)
The balloon
is ____ far:
V = u +
at
V= 1.01
+ (9.8)(1)
V=10.81
–distance at 1 one second
V= u +
at
V= 1.01
+ (9.8)(2)
V= 20.61-distance
at 2 seconds
V= u+ at
V=
30.41- distance at 3 seconds
V=
40.21- distance at 4 seconds
D=
102.04 m
(c)
If the
balloon is rising steadily at 1.01 m/s:
V= -1.1
m/s
