A cylinder is rolling over frictionless horizontal surface with velocity v 0 as shown in figure. Coefficient of friction between wall and cylinder is µ= 
. If the collision between cylinder and wall is completely inelastic, then kinetic energy of cylinder after collision –
Text Solution
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Collision between wall and cylinder is completely inelastic
∴ 
= 
= mv y [v y : f cylinder in
upward direction after
⇒ v y = μ v 0
Now, Angular impulse due to friction force
– 
. 
= 
[ ω : Angular velocity of cylinder after collision]
⇒ ω = 
Kinetic energy after collision
= 
+ 
= 
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