Question: 2 a ) Two blocks with masses m and 3 m are moving on a frictionless horizantal track. Initially they are moving with same speed

2a) Two blocks with masses m and 3m are moving on a frictionless horizantal track. Initially they are moving with same speed re towords each other as shown in fipure.
a) How much energy would be lost if the masses stick to cachother and move as one after collsion?
What would be the final speed of the 3 M mass if the collision is elastic?
2 a ) Two blocks with masses m and 3 m are moving

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