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A mass of 2.0 kg is put on a flat pan at...

A mass of `2.0 kg` is put on a flat pan attached to a vertical spring fixed on the ground as shown in figure. The mass of the spring and the pan is negligible. When pressed slightly and realeased the mass executes a simple contant is `200 N//m`. What should be the minimum amplitude of the motion, so that the mass gets the detached from the pan? `(Take g= 10 m//s^(2))`

A

10.0cm

B

Any value less than 12.0cm

C

4.0cm

D

8.0cm.

Text Solution

Verified by Experts

The correct Answer is:
A
Mass is detached when maximum possible acceleration is equal to g .
`rArr omega^(2)A = g rArr (K)/(M) A = g rArr A = (Mg)/(K)`
` = (2 xx 10)/(200) = 10` cm
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