Ablock is attached to a horizontal spring. on top of this block rests another block. the two-block system slides back and forth in simple harmonic motion on a frictionless horizontal surface. at one extreme end of the oscillation cycle, when the blocks come to a momentary halt, the top block is lifted vertically upward, without disturbing the bottom block. what happens to the amplitude and the angular frequency of the ensuing motion?

Angular frequency will increase

No change in the amplitude

Explanation:

At extreme end of the SHM the energy of the SHM is given by

here we know that

now at the extreme end when one of the mass is removed from it

then in that case the angular frequency will change

So angular frequency will increase

but the position of extreme end will not change as it is given here that the top block is removed without disturbing the lower block

so here no change in the amplitude

gravity

explanation:

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