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A cylinder is released from the top of a...

A cylinder is released from the top of an incline making angle `theta=45^(@)` with the horizontal. The length of the incline is `2.82m` and mass of cylinder is `1kg`. The coefficient of friciton is `0.2` between the cylinder and the incline. When the cylinder reaches the bottom of the incline, its total kinetic energy is `(g=10m//s^(2))`

A

Equal to `20` joule

B

Greater than `20` joule

C

Less than `20` joule

D

`28.2` joule

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