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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]

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] 

Grade:12th pass

1 Answers

ANJANA AJI
18 Points
5 years ago
  when the mass leave the pan
    its maximum acceleration =acceleration due to gravity
   ie g=Aw2
  A=g/w2
A=gm/k
A=10×2/200
A=10-1m
  =10 cm

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