When two blocks A and B coupled by a spring on a frictionless table are stretched and then released , then Options: A . &nbspkinetic energy of body at any instant afer releasing is inversely proportional to their masses B . &nbspkinetic energy of body at any instant may or may not be inversely proportional to their masses C . &nbsp`(K.E. of A)/(K.E. of B) = (mass of B)/(mass of A)` when spring is massless D . &nbspboh (B) and (C) are correct

When two blocks A and

Question

When two blocks A and B coupled by a spring on a frictionless table are stretched and then released , then

Options:

A . kinetic energy of body at any instant afer releasing is inversely proportional to their masses

B . kinetic energy of body at any instant may or may not be inversely proportional to their masses

C . `(K.E. of A)/(K.E. of B) = (mass of B)/(mass of A)` when spring is massless

D . boh (B) and (C) are correct

Answer: Option D

when spring is massless . Then according to momentum conservation principle,

` vec (p_i) = vec(p_f)`

or `R` ``right` `yes`

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