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DATE:
October 1, 2011
DUE:
October 7, 2011
ENG102, homework set #2.
1.
After Sample Problem 2/8 in Text:
a. Do the problem, answering questions ad, but start by converting all units into
sensible units, e.g., mi
→
km, ft
→
m, etc. This should be done while maintaining
the physics of the problem intact.
Suppose the rocket is experiencing an airdrag that contributes to the total accelera
tion with

α
¯
v
, where
α
is a nonnegative constant. Let us denote the angle of the
rocket relative to horizontal with
θ
(that angle is zero as the problem is stated in the
book – a positive angle
θ
will mean that the nose of the rocket will point up relative
to its center of mass; this is not necessarily the trajectory of the rocket).
b. For
α
= 0
calculate, as a function of
θ
∈
[0
,
π
2
]
the total acceleration
¯
a
on the
rocket. Display the result in the two coordinate systems
¯
e
n
,
¯
e
t
and
¯
e
x
,
¯
e
y
.
c. For
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 Fall '08
 Eke

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