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in elevator before cable breakA block of massmis suspended from the ceiling of a stationary elevator through a spring of spring constantk. suddenly, the cable breaks and the elevator starts galling freely. show that the block now executes a simple harmonic motion of amplitudemg/kin elevator.

mg=kx

in frame of elevator after cable break

F(gravity)+F(pseudo)+F(spring)=0

answering question is not tough but i am interested in other things that will happen with this system.

Will the elevator move with a constant acceleration with respect to a person standing on the surface of earth.???? (If mass of block attached to spring and elevator are comparable.)

Will the elevator move with a constant acceleration with respect to a person standing on the surface of earth.???? (If mass of block attached to spring and elevator are comparable.)

I think elevator will not move with constant acceleration ; but the center of mass of spring mass plus elevator will move with constant acceleration. since acceleration of spring block is not

**g**(acceleration due to gravity) so elevator will not move with constant acceleration...

**How will you define the motion of block after cable breaks**

**(with respect the earth's frame)**???

I can't do this.