A metal ball of mass 2 kg moving with speed of 36 
has a head on collision with a stationary ball of mass 3 
. If after collision, both the balls move as a single mass, then the loss in K.E. due to collision is
Text Solution
Verified by ExpertsThe correct answer is:
D
: Mass of metal ball 
;
Speed of metal ball 
and mass of stationary ball 
Applying law of conservation of momentum,
or, 
Therefore loss of energy
J.
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