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91. We adopt the positive direction choices used in the textbook so that equations such as
Eq. 422 are directly applicable.
(a) With the origin at the firing point, the
y
coordinate of the bullet is given by
yg
t
=−
1
2
2
. If
t
is the time of flight and
y
= – 0.019 m indicates where the bullet hits the
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics, Light

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