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A partical is realeased from the top of ...

A partical is realeased from the top of two inclined rought surface of height `h` each. The angle of inclination of the two planes are `30^(@)` and `60^(@)` respectively. All other factors (e.g. coefficient of friction , mass of the block etc) are same in both the cases. Let `K_(1) and K_(2)` be the kinetic energy of the partical at the bottom of the plane in two cases. Then

A

`K_(1)=K_(2)`

B

`K_(1) gt K_(2)`

C

`K_(1) lt K_(2)`

D

Data insufficient

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The correct Answer is:
C
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