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35. We denote the magnitude of the frictional force
α
v
, where
=⋅
70 N s m. We take
the direction of the boat’s motion to be positive. Newton’s second law gives
−=
vm
dv
dt
.
Thus,
0
0
vt
v
dv
dt
=−
³³
where
v
0
is the velocity at time zero and
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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, Force, Friction

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