1.(5 points) A block of mass
m
is initially traveling with a velocity v
0
up an inclined plane set
at an angle
θ
to the horizontal. The coefficient of friction is equal to
μ
and gravity is acting.
What distance,
d,
will the block travel along the slope before it stops?
2. (5 points) Two objects are traveling on a collision course as shown, moving in a horizontal
direction. The picture is drawn in thecenter-of-mass frame. The velocity of the first object
measured relative to the center of mass is v
1
. Whatis the velocity v
2
of the second object
relative to the center of mass? Write this velocity in terms of
m
1
, m
2
,
and v
1.
Specify the
magnitude and direction. Explain.

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