As shown in figure, block m and wedge M move together with a horizontal acceleration of 2

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4-2.Friction

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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 $15\, m/s^2.$

Solution

Friction force is constant and is equal to the weight of the block.

Standard 11

Physics

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