A mass of 2.0 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in the figure.
The mass of the spring and the pan is negligible. When pressed slightly and released the mass executes a simple
harmonic motion. The spring constant is 200 N/m. What should be the minimum amplitude of the motion so that
the mass gets detached from the pan? [Take g = 10 m/s2]

Question

ANJANA AJI · Answer

when the mass leave the pan its maximum acceleration =acceleration due to gravity ie g=Aw 2 A=g/w 2 A=gm/k A=10×2/200 A=10 -1 m =10 cm

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