A) at the mean position of the platform
B) for an amplitude of \[g/{{\omega }^{2}}\]
C) for an amplitude of\[{{g}^{2}}/{{\omega }^{2}}\]
D) at the highest position of the platform
Correct Answer: B
Solution :
[b] As the amplitude is increased, the maximum acceleration of the platform (along with coin as long as they doesn't get separated) increases. |
If we draw the FBD for coin at one of the extreme positions as shown |
Then, from Newton's second law, |
. |
For loosing contact with the platform, |
So, |
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