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As shown in the figure, block m and wedge $M$ move together with a horizontal acceleration of $20\, m/s^2$. Given $m = 1\, kg$, $\mu = 0.6$ (between $m$ and $M$) and $g = 10\, m/s^2$. Choose the $CORRECT$ alternative :-
  • AAs acceleration of the system is slightly increased, friction force between $m$ and $M$ will increase.
  • BAs acceleration of the system is slightly decreased, friction force between $m$ and $M$ will decrease.
  • CAs acceleration of the system is slightly increased, friction force between $m$ and $M$ remains constant.
  • DFriction force attains its maximum value at an acceleration of $15\, m/s^2.$
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