Statement - 1 : A block of mass `m` starts moving an a rough horizental surface with `x` velocity `x` it step dus to friction between the block and the surface is now tihed in an angles a cormin distance . The surface is now tilted is an angle on the `30^(@)` with the inrizonal and the same block is to go up on the surface with the same inital velocity `x` .THe decrease in the mechanical energy is the second situation is smailar then the that the first situation
Statment -2 : The coeifficient of friction between the block and the surface dicreases with the increses in the angle of inclimation .

Options

A. Stetment -1 is True , Stetment - 2 is True , Statement - 2 is a correct explenation for Stetment - 1
B. Stetment -1 is True , Stetment - 2 is True , Statement - 2 is NOT a correct explenation for Stetment - 1
C. Stetment -1 is True , Statement - 2 is False
D. Stetment -1 is False , Statement - 2 is true

Explanation

Statement 1 : In the first case the machanical energy is complately converted into heat the to fiction but another part of inechanical energy is retained in the form of potential energy of the block
Thereforre statement 1 is correct .
Statement 2 : This is a wrong statement became the coefficient of friction between the block and the surface does not on the angle of inclination .