Question

A coin is placed on a horizontal platform which undergoes
vertical simple harmonic motion of angular frequency ⍵.
The amplitude of oscillation is gradually increased. The
coin will leave contact with the platform for the first time
(a) at the mean position of the platform
(b) for an amplitude of g/⍵²
(c) for an amplitude of g²/⍵²
(d) at the highest position of the platform

Answer 1

Answer:

a) at the mean position of the platform

(b) for an amplitude of g/⍵²

(c) for an amplitude of g²/⍵²

(d) at the highest position of the platform

Explanation:

hope you understand mate

Answer 2

Answer:

I think option c

I hope I help u