A block of mass m, attached to a fixed position O on a smooth inclined wedge of mass M…
Physics · JEE Advanced · NTA Exams — Oscillations and Waves
A block of mass m, attached to a fixed position O on a smooth inclined wedge of mass M, oscillates with amplitude A and angular frequency \(\boldsymbol{\omega}\). The wedge is located on a rough horizontal surface and the wedge doesn’t move. If the angle of the wedge is 60°, then the force of friction acting on the wedge is given by (coefficient of static friction = μ)
- (M + m) g
- \(\frac{1}{2} m \omega^{2} A \sin \omega t\)
- \(\mu(M+m) \omega^{2} A \sin \omega t\)
- \(\mu\left[(M+m) g+\frac{\sqrt{3}}{2} m \omega^{2} A \sin \omega t\right]\)
Answer
(B) 1 2 m ^ 2 A t
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