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Question

A suitcase is gently dropped on a conveyor belt moving at 3m/s. If the coefficient of friction between the belt and the suitcase is 0.5. Find the displacement of suitcase relative to converyor belt before the slipping between the two is stopped (g=10m/s2)

A
2.7m
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B
1.8m
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C
0.9m
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D
1.2m
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Solution

The correct option is C 0.9m
SInce the suitcase is slipping, retardation due to friction is given by:
a=μMgM=μg
So
v2u2=2as
In the frame of the conveyer v=0 and u=3m/s
32=2μgs
s=0.9m
Hence Option C is correct

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