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A ball of mass m is attached to the lowe...

A ball of mass `m` is attached to the lower end of a light vertical spring of force constant `K`. The upper end of the spring is fixed. The ball is released from rest with the spring at its normal `(` unstretched `)` length, and comed to rest again after descending through a distance `x`.

A

`x=(mg)/(K)`

B

`x=(2mg)/(K)`

C

The ball will have no acceleration at the position where it has descent through `x//2`.

D

The ball will have an upward acceleration equal to g at its lower most position.

Text Solution

Verified by Experts

The correct Answer is:
B, C, D
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