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A ball is dropped from height 'h' as sho...

A ball is dropped from height 'h' as shown.The collision is perfectly inelastic. Select the correct alternative (s)

A

The speed of the combined blocks just after collision is `sqrt( 2 gh)`

B

The speed of the combined blocks just after collision is `((m)/(M+m)) sqrt(2gh)`

C

The amplitude of oscillations of the system is`(mg)/(k)`

D

The amplitude of osciallations of the system is `(mg)/(k) (1+ ( 2hk)/((M+m)g))^(1//2)`

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