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Physics-

General

Easy

Question

As shown in figure, a block A having mass M is attached to one end of a massless spring. The block is on a frictionless horizontal surface and the free end of the spring is attached to a wall. Another block B having mass ' $m$ ' is placed on top of blockA. Now on displacing this system horizontally and released, it executes S.H.M. What should be the maximum amplitude of oscillation so that B does not slide off A? Coefficient of static friction between the surfaces of the block's is $mu$ .

$A_{max} = \frac{m g}{k}$
$A_{m a x} = \frac{μ (m + M)}{k}$
$A_{m a x} = \frac{μ (M - m) g}{k}$
$A_{m a x} = \frac{2 μ c (M + m}{k}$

The correct answer is: $A subscript m a x end subscript equals fraction numerator mu left parenthesis m plus M right parenthesis over denominator k end fraction$

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