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A 1 kg block situated on a rough incline...

A 1 kg block situated on a rough incline is connected to a spring of negligible mass having spring constant `100 Nm^(-1)` as shown in the figure.The block is released from rest with the spring in the unstretched position. The block moves 10 cm down the incline before coming to rest. The coefficient of friction between the block and the incline is (Take `g = 10 ms^(-2)` and assume that the pulley is frictionless) 

A

`0.2`

B

0.3

C

0.5

D

0.6

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The correct Answer is:
B
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A 1kg block situated on a rough incline is connected to a spring of spring constant 100Nm^(-1) as shown in figure,. The block is released from rest with the spring in the unstretched position. The block moves 10cm down the incline before coming to rest. Find the coefficient of friction between the block and the incline. Assume that the spring has negligible mass and the pulley is frictionless.

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