A plank with a small block on top of it is under going vertical `SHM`. Its period is `2 sec`. The minium amplitude at which the block will separate from plank is :
A. `(10)/(pi^(2))`
B. `(pi^(2))/(10)`
C. `(20)/(pi^(2))`
D. `(pi)/(10)`
A. `(10)/(pi^(2))`
B. `(pi^(2))/(10)`
C. `(20)/(pi^(2))`
D. `(pi)/(10)`
Correct Answer – A