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Q. The system of the wedge and the block connected by a massless spring as shown in the figure is released with the spring in its natural length. Friction is absent. Maximum elongation in the spring will bePhysics Question Image

Laws of Motion

Solution:

Using conservation of mechanical energy
$M g\left(x_{m} \sin \theta\right)=\frac{1}{2} K x_{m}^{2}$
$x_{m}=\frac{2 M g \sin \theta}{K}$