A R=!1.60 m m = 0.200 kg 3.00 m B C
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Question
In a truck-loading station at a post office, a small 0.200
kg package is released from rest at point A on a track that is onequarter
of a circle with radius 1.60 m. The size of the
package is much less than 1.60 m, so the package can be treated as
a particle. It slides down the track and reaches point B with a speed
of 4.80 m>s. From point B, it slides on a level surface a distance of
3.00 m to point C, where it comes to rest. (a) What is the coefficient
of kinetic friction on the horizontal surface? (b) How much work
is done on the package by friction as it slides down the circular arc
from A to B?
Transcribed Image Text:A
R=!1.60 m
m = 0.200 kg
3.00 m
B
C
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